Carpentry - what a way to lose the weight

I think I may have made a few good strides toward my weight loss efforts over the past couple of days. No, not serious dieting, just pure hard *work*. My brother is building a house and I have been working out there helping him with lifting sheetrock and spackling and today I spent an hour sweeping rain water off the second story (which is not yet roofed). Dang weather is so not cooperating with us on this project, but we're trying. And as I said, at least lifting 4x8 sheets of sheetrock is good for my efforts to lose weight by the end of this summer - which is scarily closing in fast. I just hope we have enough time before the snow flies to get that roof on the dang place.