I prefer no inventory or encumbrance but just collections. Perm objects once you collect you have it forever and if you get a new one it just auto converts to coins or whatnot and consumables you get a number in the collections and if it is 0 then you can't use it. Sure its not realistic that a character can carry tons of crap but they stick in magic chests or unlimited space motorcycle trunks or whatever anyway. Just pretend your character is only carrying the equiped items and every thing else is in the magic mcguffin that allows you to essentially carry around a bunch of crap but take the inventory management aspect out. I play to have fantasy and have fun. Not organize crap. I have to organize crap (or at least should) in real life.