Containers in Roguelikes

Jars are a type of container in Sheeran. If you put an item in a jar, then it's stored for safekeeping. Many jars perform some special ability on the item that removes curses from items that you put into them. The bottomless jar is pretty much a bad item. I think there is a type of muscle that pretends to be items. There is also an identification system which means that bad items actually have a use.