CONTAINERS! I really want to manage my inventory.
Unique containers - For important items. Marked unique as well, so you don't accidentally sell them. Like that time I sold my Pixie Bell somewhere. I was not amused.
Just a named bag [for the races, like with underwear?] just to manage companions inventory with.
Ammo Belt - For storing arrows and throwables, obviously. Should work the same as the containers we have now.
Scroll Case - Same, but for scrolls
Potion Case - Same, but for potions and poisons.
Wares Crate - That automatically stores stuff that is 'added to wares'
Bags of Holding - that decreases or negates the weight in the bag. Make it expensive, it;'s fine, it's for us hoarders anyway.
And if that is too much hassle, just go:
Red backpack, blue backpack and so forth.
Give me the ability to 'mark as important' so I don't sell them.
This is another one that's important to me, for sure. #1 would be the ability to lock inventory items so that I don't accidentally sell or destroy them. I too miss my pixie bell.
I'm also with you that we could use more designated bags, but I'd go an extra step and ask that we be able to designate bags to specific item categories ourselves, and then to be able to rename those as well ofc.