Just give us a shared inventory Larian, with the combined carrying capacity of the party.
As I've stated before potions, scrolls, etc. should be equipped to a small bag, in the equipment menu. This would also prevent the HUD from getting cluttered with every scroll and potion the party picks up along the way.
I went in early and turned that crap off in the options. That got annoying as hell, but at least I could turn it off.