Maybe an even simpler system (for both equipment and encumbrance) is to list pre-packaged "packs". 
Sort of like the outfit system. Previous editions listed different weights for hats, pants, and so on, while 3E just listed a single weight for "explorer's outfit" and described what sorts of things such a clothing package would include. 
So, you could have a "dungeoneer's pack" with rope, flint & steel, lantern, oil, 2 candles, 4 pitons, hammer/hatchet, chalk, and 2 sunrods. Or a "healer's pack" with antivenom, healer's kits, bandages, water, sewing kit, and such. "Explorer's pack" with compass, tent, bedroll, rope, pitons, flint & steel, 2 torches, hatchet. Each pack could have "+2 small items of the player's choice" what for to allow some easy customization. 
Ideally, neither clothing outfit nor pack count towards encumbrance if worn. Such an assumption would ensure that every character would 1) have clothes, and 2) have basic (but specific!) equipment. I've found that players look at the long list of equipment and all the little weight values, and just don't bother with writing it all down. It'd be a lot better if they could just write one entry ("Climber's pack") and have those two words equal seven or eight actual items.