I'm lucky that we didn't need the separate attached single car garage that came with this house. I converted it into a mancave. Outfitted with 2 comfy leather recliners, two papasan chairs, 3 bar stools, regulation dart board, humidifier, two ceiling exhaust fans, air scrubber and ventilation fan, 55inch plasma, receiver, turntable, CD and DVD players. I can enjoy a cigar in comfort despite high winds, cold temps and pouring rain...had it all the past week or two...
space heater keeps it above 67F in the winter ...and built in AC keeps it around 76F during the heat of summer