re: Anyone convert attached garage into living space?

I converted mine... 19x19 space. Bought rubber flooring interlocking tiles from Rubber Flooring Direct. Have two dumbbell racks, bench, and pull up bar in there. It is partly my workout room but also a play room for the kids since it's so wide open. We just put a big window unit in there (it had a small little closet with a window) and I added a return duct to my HVAC right outside the door to help keep it cool.