Normally, any items you attain are added to the loot tab, but you have the ability to move any item you want from the Loot tab to the Adventuring Gear tab like a favorites list. This keeps stuff like your Fortify Archery potions, equipped gear, and your off-weapons completely invisible to you while you manage your loot.
This way, you get a good, uncluttered view of what you actually have with you that you still need to sell. This would also make it easy to ration your gathered Health/Magicka/Stamina potions and easily sell any of them beyond whatever number you've transfered to your adventuring gear tab so you don't end up carrying 50+ pounds of them with you everywhere you go.
Additionally, this might make having a third "Temporary" tab useful as well to easily sort items you don't want to get rid of, but won't be using either.

