So OSRS just updated about a week ago with drinking the last dose of a potion, it automatically breaks the glass and it disappears. Not sure about everybody, but I personally would like that just as it saves a tad bit of time. Just thought i'd suggest and see what everyone thinks!
I get that some people would like to keep the vials for Herblore, but i'm sure a shop sells them so this would just be a bonus in my opinion.
P.S This was Parity's idea not mine!