Suggestion: allow accessing the inventories of non-party member companions while in camp, allow to retrieve items/gear when you forgot to do so before swapping party members.
Consider the following: I have Astarion in my party and he is carrying +1 Sleight of Hand gloves.
I go to camp, swap out Astarion for Gale, and continue my adventure.
When realizing I need those handy gloves, I return to camp to retrieve them.
Since I cannot access Astarion's inventory (AFAIK) without him being in my party, I now how to go through the hassle of swapping Gale back for Astarion, retrieve the items, then swap Astarion back for Gale again.
It would be a nice QoL improvement if it became somehow possible to access the inventories of every companion currently present in camp.