When I look at items in the store, I don't always know offhand how many of the item in question I already have. Searching takes a lot of time when you're going through the store's whole stock, which I do periodically looking for low level gems. Maybe a little number by the item icon signifying the number you already have?
Exactly this exists already? Look to the right of item's name. No matter are you in a shop, looting screen or keep.
