My favorite little house rule is to replace charged/limited use items with die types. Example: an item has 50 charges (I say it is a d20 item) - when you use it you roll a d20, if you roll a 1 it goes down to a d12, roll a one it goes down d8->d6->d4. It comes out to around 50 charges, but it is a fun little subsystem players enjoy.
My favorite little house rule is to replace charged/limited use items with die types. Example: an item has 50 charges (I say it is a d20 item) - when you use it you roll a d20, if you roll a 1 it goes down to a d12, roll a one it goes down d8->d6->d4. It comes out to around 50 charges, but it is a fun little subsystem players enjoy.