One thing I did that I was happy with, was my garage has 10' 2X6 walls and I put 1/2 plywood on the lower 8 feet with the top 2 feet dry wall. You can mount things on the walls so much easier. I also splurged and put radiant floor heating in, but I live in Canada so it can get cold and damp on the west coast. The shop is only 24 X 36, but the city made me get it engineered for an extra couple of thousand. Dang that hurt. It has 7" of concrete on the floor, and the first two feet of the entrance has 24". Don't ask me, that was the engineers idea. Good luck when it ever comes time to tear that down.
