Arkhandus said:
Name me one fantasy series, movie, or novel in common parliance that has magic-users hurling around magical power all the time as though it were an unlimited resource.
Maybe in some obscure fantasy books every Tom, Dick, and Harry with a bit of magical training can hurl fire and lightning all day long, but I haven't seen a single such book myself, and I know full well they aren't 'common' fantasy.
I think you might need to get down to the bookstore more often. Instead of one, how about more than a half-dozen where mages are both common and they can tap a lot of magic over a long period of time?
The Deryni novels. Low level magic in most cases, but they use it all the time. Mind-speaking, warding, fire-making, etc; it's basically a psionics system. Every Deryni can do such magic from the time they are young.
The Jhereg books.
Every person in the empire can use magic, if they have the cash or will to learn it. Continnental teleportation, fire blasting, familiars, raising the dead, etc. The Imperial Orb bears the brunt of the energy cost, so you can do it pretty much whenever.
The various
Valdemar books. All the characters have some ability with magic; mostly mind speaking and truth saying, but some have fire and lightning calling which they can use for quite some time before tiring if they are not drawing power from the land itself. Telekinesis, forming gates between places, wind calling, making magic weapons, and basic attack/defense energy manipulation are very common. The books set in older times or in other places have mages that use destructive magic pretty much as they please; they're really only constrained by 'role playing constraints', since they can draw power from earth elemental taps.
The Dresden series. Harry tosses off spontaeous spells, makes potions, strikes down monsters with his blasting rod, blocks damage with his shielding charms, etc. He gets tired, but he bounces back damn quick and his repetoire is pretty much 'what I can think of at the time'.
The Harry Potter series. When was the last time any of the wizards there said 'well, that's it, no more magic for me today'. None. Flying, teleportation for going to the big city, magical healing, etc.
The Chronicles of Amber. ALL the Amberites have some facility with magic; the royal family much more so. Teleporting, summoning, mind speaking, pulling objects out of Shadow, etc.
Malazan Book of the Fallen; mages are common in the Empire, and they do some amazing levels of magic, their power source coming from the warrens they pull eneergy from. Only if they are cut off from this for some reason do they tire. Otherwise, they blast people, walk between countries, summon and bind spirits to their bidding, etc.
The Codex Alera. Everyone has some degree of elemental use, either in stone, water, fire, air, metal or wood. Someone with a strong Earth element, for example, is amazingly strong and durable in addition to being able to call on his or her earth elemental itself to come and do their bidding. There are degrees of power, but it's rare that even a decent practitioner is too weak to use at least some of their abilities. Most of the notable changes to a person are 'on' all the time without conscious thought.
Now, those are just some popular
and recent or best-selling classic series right off the top of my head. If I had time, I could probably find another half-dozen at the very least that meets the criteria you set.
Movies in common parlance is harder, because you can count the number of actual 'fantasy' films ever made, even the obscure ones, on your fingers and toes with some left over. Now, we'll ignore a metric ton of the Chinese and Korean wuxia movies, with sorcerers that spout fire or heroes that manipulate water and air into weapons or use their command of metal to keep themselves from harm, all as abilities used as naturally as breathing - those would be too 'obscure' (even though they're only obscure in this country).