Double Your Storage

Live in a small home?  Or perhaps you just want to store a lot of stuff?  It makes sense to invest in furniture which does double duty.  A blanket box makes a great coffee table.  What about a coffee table with additional shelves or drawers?  Some ottomans come with a hinged lid to provide extra storage.  Or consider one which actually folds out to become a single bed – great for overnight guests.  Can you think of any more double duty storage ideas?