Redoing a Room in your house

If you could redo any ONE room in your house with no cost to you, what room would you choose and what would you do with it? I'd choose our living room. Since that is where we spend most of our time. I'd get a new couch & chair. New sidetables, a new TV, and a new computer desk. And some kind of shelf system to hold all our other electronics on. I'd also want surround sound speakers.