8 hours a day? You gots to be a bad a$$!!! {salute}
its really not that bad...its more like run 200yds to a car, drive the car back, rinse, repeat. there is a slight grade involved tho...haha.
when we are busy tho its def a workout. last saturday i ran cars for 3 hours straight.
I lost like 20lbs after I started working as a valet...then again, I had started to get kinda chubby.