Bill,
I now envision a dual holster arrangement with two cans of spray wax. You climb the ladder, tip your cowboy hat, and draw. You shoot the two cans at once as you run back and forth from one end of the roof to the other. A quick couple of glides with some fuzzy slippers on to buff the coat and you are good to go in 20 minutes flat.
Sounds like this could be a very entertaining enterprise to watch, billed as Buffalo Bill, the fastest wax man in the west :-)
Steve, nice shop and I do like the rolling stairs. Looks like a great place to work, given it is as hot as it is out there this time of year.
Later Ed