A button to drink any selected potion you are standing on.
This would be a godsend when struggling with efficiency, and there would be many times you can just use the stamina/antidote/thawing potion that you would never be able to do otherwise in excess to healing and mana of course.
It would also alleviate some of the troubles with having less than 16 slots for the belt.
- Efficiency - Not needing to stop and open the inventory to use a potion on the ground.
- Opportunity - Finding something to use in the moment.
- Less traveling to town for a drink and less need for potions in the inventory.