Down in a hole

My roommate/friend/landlord assures me that it's a legal domicile, but my new apartment is also zoned as a business.  It's on the ground floor of the building and the front "door" is one of those metal garage-door-type things that you pull up/down to open/close.  Like the ones in this photo, but less cool.  In square feet, or square meters or whatever you prefer, my room is pretty small (which is fine because I don't have much stuff), but in cubic feet it's huge because the ceilings are super high.  When I lie in my bed it sort of feels like being at the bottom of a well or something.  (In the book I'm reading right now, some of the characters spend some time at the bottoms of wells, but I'm pretty sure I would be getting the well sensation regardless.)  If anyone knows how to make good use of vertical space in a small room, do let me know.