I was thinking about this the other day as I kept getting so much random junk in my inventory. I thought it would be nice to have a loot block list of some sorts. So I could click an item and click block and it would stop anymore of that item being put in my inventory from my loot list until I unblock it.

Also for selling to NPC I would like to be able to click something like bulk sell and then select all the items in my inventory I want to sell with one click to highlight them and then sell the whole lot in one go.