So I've never been a fan of encumbrance in games, while it might certainly make sense from a realism stand point, for me, from a game play position it is just annoying. Bethesda makes it even more annoying in their games b/c they add tons of lootable items and a lot of times you don't know which things you might need later, some things you know you might need later you're forced to leave behind.
Anyway, I don't suppose there's a mod out to cut down on the weight value of items, particularly ingredients, I want all my ingredients/materials to weigh zero, I can deal with weight on weapons and what not but I don't like being bogged down by crafting supplies, it's just silly.