It's not done yet, but remember the loft we were using for storage?
I covered the plywood floor with blankets from Goodwill (a temporary fix until we get around to putting in actual flooring), and we moved the music room/office up into the loft.
I'm not sure which is the best part: the newly created favorite reading spot in the living room, or the fact that I now only get on the computer once or twice a day. It's not so convenient to "just check email really quick" when I have to climb two sets of stairs and a ladder to do it!