Many abilities have limited uses per day which forces players to carefully consider when and for what to use them, or else they might risk not having them when they're really necessary. While that in itself isn't bad, it kinda makes games less fun then they could be. Think about the roleplay potential of being allowed to, for example, wild shape as a Druid, or cast an illusion, or teleport, just for fun, without wasting precious resources.
There are some options that kinda serve that purpose, for example some cantrips are much weaker but unlimited versions of some spells that you'd imagine casters using in their day-to-day life, but IMHO it's not enough. 5ed D&D had the idea of making some utility spells castable as rituals, which doesn't use spell slots but takes a lot of time.
The point of this thread is to come up with an effective houserule or way to allow casual use of per-day abilities that makes sense fluff-wise and hopefully doesn't leed to abuses.
To start this of I'll ask if there's any merit to the idea of separating the game into two areas, one of which would be the regular adventure stuff where you'd track your per-day abilities as usual, while the other would be more laid back, focusing more on roleplay.
