I for myself don't like such unreal things like weightless items.
I rather increase the storage the player has.
Not the best solution, that would be external storage space, but still better than weightless items.
But i'll see what i can do.
The problem is that there's no storage chest in the game and it's not a good decision to sell all of those hard earned alchemy ingredients/crafting components. so I've found my inventory weight growing over time. however you gave me a good hint, maybe it's better to use an increased carrying weight mod instead.