This is my third homebrew rule revision to Dungeons & Dragons 3.5, which I'm calling the 3.t edition. Today's rule revision has little to do with speeding up gameplay, but has a lot to do with lengthening the game day. In particular, we're addressing Vancian magic. That's the form of magic that 3.x and earlier versions use -- basically, spellcasters can use a limited array of spells per day, and then they're wiped out and need to rest. That's a very different model from Diablo, for example, where your character can shoot fireballs all day, so long as he has mana.
The problem with the Vancian system is that it engenders the "15 minute work day" -- that is to say that clerics, wizards, and the like seem to blow through their spells after just a few combats, causing the group to go rest after less than a hour in the game world. Dungeons & Dragons 4th edition has a solution for this, which is pretty close to just abandoning the Vancian magic system. I personally wanted to do something much simpler with the 3.5 rules. I was thinking, could I address the issue by changing just one single table in the Player's Handbook?
Let me show you the revised table, and then I'll explain why it's awesome.