Infinite Supplies

Characters not only never run out of basic items like food and clothing, but they never seem to have a problem getting a hold of all their gear, no matter how difficult it would be for your average person to obtain because of rarity, cost, or illegality. Fragmentation grenades, armored vehicles, plutonium, mobile lab equipment, whatever it is, good guys seem to be able to procure it with about as much effort as it takes the rest of us to buy a cheeseburger.

Where do they get this stuff, (especially the toys)?

See also Offscreen Villain Dark Matter, Unlimited Wardrobe (the clothing equivalent), We Have Reserves (for expendable minions). See Easy Logistics for the RTS version and Bottomless Magazines for the ammunition version.

The complete opposite of Perpetual Poverty. Forgot to Feed the Monster is a Subversion. Note that just having one or two episodes where supplies are mentioned is not an aversion, if they completely ignore the logical limits of available supplies at all other times.

Anime and Manga

 * Ritsuko from Those Who Hunt Elves is played up as sort of a Cosplay Otaku Girl /k/ommando taken Up to Eleven, but even so her ammo dump never seems to run dry of bullets, grenades, landmines, miscellaneous tacticool equipment or even artillery shells for the Russian surplus T-72 tank it's all carried on while Trapped in Another World for two seasons. Speaking of this tank (owned by an otherwise perfectly Ordinary High School Student), it also presents one of the few aversions in the show, as at first it runs on something resembling gasoline squeezed from pear-like nuts until they have the misfortune to run dry and nearly abandon it before.
 * Poor Kelly. Due to the fighting in Transformers, robots In Disguise, she's gone through probably one fairly expensive car per episode, and yet still seems to be able to get her hands on another one without any kind of insurance gouging, due to the fact that she always has something fancy.

Comic Books

 * Most superheroes, in both cartoons and live action, are guilty of this. Sometimes it's explained, but often it isn't. Batman has Wayne Enterprises as a front to bankroll his ventures, but how does Superman afford to pay the grounds crew responsible for maintaining the Fortress of Solitude while he's living in Metropolis? Of course, it's possible to explain this away—Superman, for example, had a horde of robots he had built using his superpowers to maintain the Fortress—but most don't bother.

Film

 * Legolas in The Lord of the Rings movies seems to have infinite arrows. Painfully averted in the novels, where the action will occasionally grind to a halt to give us exact tallies of ammunition and other supplies, and he runs out mid-battle a few times.
 * Also curiously he has no problem with collecting orc arrows for reuse, even though it's both established that the orcs use much shorter horn-bows than Legolas's longbow, and that elves usually react with disgust to anything made or touched by orcs or other servants of Sauron.

Literature

 * The Culture of Ian M. Banks' novels has created a utopian, post-scarcity society through harnessing the forces of the universes' underlying "grid", apparently effortless energy-matter conversion and the inception of benevolent AIs far beyond human capabilities. The virtually limit- and effortless availability of goods and services to the individual as well as to the society itself has led to a culture which largely lives for its own hedonism.
 * In Stephen King's Dark Tower series, where does the gunslinger Roland get all of his bullets? He's presumably been travelling with the same supply that he started with when he started his now very long quest in Book 1. Making gun ammo isn't something that's feasibly easy to do in the field and Roland's world isn't a world where he can just go to a weapons shop and buy more ammo.
 * In Book 2, Roland actually does visit a gun shop in New York and stocks up. Books 5-7 feature fights with gun-wielding mooks, visits to civilized towns, and a return to New York - plenty of opportunities to re-supply.

Live-Action TV

 * MoonBase Alpha on Space: 1999 had an apparently infinite supply of Eagle Transporters. They blew up one every episode, it seemed, and never ran out.
 * Red Dwarf did the same trick with Starbugs, until the reconstructed Red Dwarf in season 8 showed there were at least a dozen of them available.
 * Star Trek: Voyager was a particularly Egregious offender. Voyager was stranded on the other side of the galaxy, far away from Federation space, but they rarely had any supply problems.
 * Voyager has both played this straight and disregarded it. In the early seasons, "replicator rations" and the use of a greenhouse to grow crops on the ship were prominent subplots, along with Neelix having to scout out supplies and contacts for the crew (as he was intended to be an intermediary between the ship and other alien races for supplies). On the other hand, the ship was damaged so often and lost so many key components - including a grand total of 16 shuttles - that it's hard to fathom how the ship made it back to Earth in one piece, let alone looking just as spotless as when it first set out at the beginning of the series. Later episodes like "Fury", where a time-travelling Kes causes a Vidiian warship to blow out three of Voyager's decks (in an episode set during the early seasons, when rationing and supplies were vitally important), make the ship's ability to effortlessly repair damage even more ridiculous.
 * The original Battlestar Galactica: the command crew fought to stave off rag-tag-fleet-wide famine shortly after the destruction of the colonies. And many a dogfight in space was fought over Cylon fuel depots or tankers.
 * They did have farm ships that provided the fleet with food, although having a large clear dome on a craft that's rarely near a star seems a bit pointless.
 * The old BG revealed in later episodes that food remained a problem. The crew of the Galactica herself had at least adequate food (justified in that they have to be fighting-capable to keep the fleet alive), but there were a lot of hungry people on the other ships, though maybe no longer starving. When Lucifer attempted to lead the Fleet astray, we got to see some of them.
 * The 2004 reboot of Battlestar Galactica is also very conscious of realistic supply problems for the crews of the various ships in the fleet.
 * When the food synthesiser gets contaminated, getting access to an alternate supply ("the algae planet") not only provides plot fodder for a couple of episodes, but the crew of Galactica can be seen to be eating rations of slimy green goop a whole season later, in place of the ramen-esque noodles seen in earlier episodes.
 * Like the original series, the reboot also has farm ships with useless domes -- the Botanical Ship(s). Strangely there is a large domed luxury liner, and under the dome there is an elaborate simulation of the sky and sunlight (though "the horizon could need work") which could have been applied to the farm ships, meaning the Colonials have a way round it, but don't use it
 * Farscape is likewise aware of supply issues:
 * The legendary Farscape episode, "Crackers Don't Matter", revolves around the crew going slowly insane defending their stacks of tasteless crackers, the only food available on the ship.
 * Then in Farscape Season 3 they held up a bank and stole enough money that they never seem to be in short supply of anything from that point on. Interestingly enough, on the occasions that they are in need of supplies (in "Thanks For Sharing" for example), it's not because they're short on money, but because their reputation has scared potential traders off.
 * Firefly:
 * Firefly extended its aversion of this trope to the supplies that would be in demand when colonizing new planets with scarce resources. It subverted viewer expectations in the (original) pilot episode, when the valuable loot that the crew is smuggling turns out not to be precious metal or money as expected, but "protein bars" to feed new settlers—where a single bar of perhaps a pound was enough to feed a family of four for a month, and give them basic immunizations to boot. This happened again in "Shindig", when it's revealed at the end of the episode that the valuable cargo that the crew is hired to smuggle is a herd of cattle. Shepherd Book buys his way onto the ship with a valuable box of strawberries.
 * The strawberries were just a portion of the pay. Fresh berries and fruit aren't that expensive in established worlds, but in space protein rations are the way to go.
 * Mystery Science Theater 3000: "Just repeat to yourself: 'It's just a show...'"
 * Oddly enough, MST3K did explain this one with the Umbilicus that Dr. Forrester used to send stuff to Joel and the Bots. Later on, after Dr. F's funding is cut and he detaches the Umbilicus, Observer, aka Brain Guy, uses his ultra-powerful consciousness to magically pop anything Mike and the Bots need into existence.
 * Despite being stuck on an island the characters on Lost never seemed to run out of supplies. Every time they came close, they'd find another source. At one point, food literally fell from the sky.

Video Games

 * Team Fortress 2. The biggest culprit of this trope is The Medic. His Healing Machine never runs out. Ever. The others commit this trope in a slightly less blatant fashion by scrounging together supplies from enemy weapons, conspicuously-floating boxes, and broken building scraps, which pepper the landscape like icing sugar. Yes, somehow a broken baseball bat can be used as flamethrower fuel.
 * The Engineer's Dispenser is an upgradeable implementation of this trope. Heaven help you if a pyro or a heavy stays near one. THEY NEVER HAVE TO STOP SHOOTING. The closet full of health and ammo in the spawn points is even more egregious.
 * Speaking of the wooden bat ("The Sandman"): It seems to have a infinite supply of baseballs as long as you let it "recharge". Knock your ball away and you can pick it up, but if you don't it will respawn in your hand after a while. Similarly, you can take as many sips of that BONK! energy drink can you want as long as you wait a few seconds between each use.
 * A similar case with the Jarate is lampshaded in the comic that introduced the item, stating the jar of piss refills itself every 20 second because the Sniper takes medicine to enlarge his bladder and dull the pain of his organs shutting down.
 * Makes you wonder how the Mad Milk (whose development name was Mann Milk) refills itself.
 * Spies have an infinite supply of sappers, which is specially troublesome to engineers if they start sapping the other end of a teleport.
 * Left 4 Dead plays this straight—the survivors will frequently run across piles of ammo which will refill their reserves to the top every time. This is especially prevalent when they take the form of half-filled coffee cans.
 * The sequel's ammo stockpiles are just that, large piles of varying types of ammunition. They're also infinite, but significantly larger, and you're never in one place for long.
 * There's also mention of the survivors forgetting to bring along their gun bag, explaining why they have no guns or ammo in the beginning of the campaign.
 * One can get this in Call of Duty: Modern Warfare 2's multi-player mode with the One Man Army perk. It allows you to switch your class at any time. You can switch back to the class you're using. It refills all of your ammo. It becomes a Game Breaker when you effectively have infinite rifle grenades.
 * A recently-discovered "Care Package Bug" allows another version of infinite supplies: with careful timing, swapping the care package marker and one's regular weapon while mantling over a chest-high structure gives you another marker after you receive and use your care package. Infinity Ward allegedly patched the bug, but made it easier to exploit, instead.
 * Subverted in Robot Alchemic Drive. The organization that built your Humongous Mecha is on the verge of bankruptcy early in the game so they make a deal with the government to be paid for killing alien robots.
 * Advance Wars series is an odd case, where the APC has limited fuel—just like every other unit - but has infinite supplies to give to any other unit. It just can't refuel itself. However, having two APCs plays this trope considerably straighter, since either one can refuel each other indefinitely.
 * Fallout 3's merchants can somehow get their hands on more ammo, guns, Prewar boxed and canned food (that's still edible if slightly irradiated after 200 years) and in the case of Flack and Shrapnel more nuclear weapons. Some can even get their hands on Power armor.
 * Bases never run out of supplies in the Space Empires games. Ever. Even if it's at the other end of the galaxy, it has infinite supplies. The same can't be said for ships, which can lose all their supplies one turn short of getting to a resupply depot in their home system. Eventually you can get a device that generates limitless supplies.
 * In Saints Row: the Third, the Saints, (specifically, the Boss) will have access to an unlimited number of garaged vehicles, with the only restriction being a $500 payment to repair and redeploy a vehicle being hand-delivered in the field. Since the Saints are practically a multinational corporation by the start of the game, this sort of makes sense—until hijacked, prototype STAG vehicles like the VTOL and Specter start appearing, as well.
 * Played straight in the X-Universe for sublight fuel and shipboard consumables (e.g. food and oxygen). Way the heck averted for munitions and energy cells for the jumpdrive.

Web Comics

 * Gunnerkrigg Court: It's only obliquely touched upon in-comic, but Word of Tom explicitly states that there are no tuition fees for students at the Court, and the needs of students and staff (food, housing, uniform clothes for any occasion, personal laboratories, lathes, etc.) are provided free of charge.
 * Apparently, every Court student has unusual talents of some sort, so it may be less of a school and more of a research project. Time will tell.

Web Original

 * The unimaginably huge costs involved in the "Containment" part of the SCP Foundation are explained as being partly funded by governments and some of the safer SCPs or SCP byproducts (one is theoretically capable of producing small amounts of gold every two hours, another provides infinite amounts of water).

Western Animation

 * Stan Smith from American Dad is, thanks to Rule of Funny, able to get any equipment or resources he needs from the CIA for his own personal use, including virtual reality machines, experimental drugs, body doubles, funds for a team of mercenaries, and loads and loads of weapons.
 * Justified Trope in The Zeta Project where Zeta, the titular robot, can literally generate as much credits as he needs. Other Infiltration Units also have this ability—in one episode in an airport a rogue agent who worked on Zeta notes that he was equipped with this so he could travel lightly and easily, after he attaches a device that disables it.
 * 12 episodes into G.I. Joe: Renegades, the Joes, despite being fugitives on the run, seem to have no trouble staying well-armed despite being shown that their clips can run out (at a suitably dramatic moment). Possibly justified if they are using lasers, as the weapons may be rechargeable. No explanation yet, however, where they get money for food, parts, and gas.
 * Phineas and Ferb have no problem getting all the equipment and material they need (and always on very short notice) to build the Fantastic Contraption Of The Day. It's come to a point where the delivery guys hardly even bother to ask "Aren't you a bit too young to...?" anymore. Where they get the money to pay for all of this is a different matter.
 * What about all the commercial enterprises they've launched throughout the series? Unlike all the series where the point of such schemes is to make money, Phineas and Ferb never shows how the gang DOESN'T make any from their latest lemonade stand empire. The gang must be loaded, just more interested in having adventures than enjoying all their money.