this is considered exercise, right?

[Minuit]

I know for a fact that after a good junkyard day I was BEAT - and the habit of frequently junkyarding helped me lose quite a bit of weight. I'd usually rack up 4 or 5 miles worth of walking on a "productive" day - and it always seemed like it was on a hot, sunny day. So yeah, I'd call it exercise

 

Work smart, not hard - use leverage or machinery to move heavy stuff. If you absolutely HAVE to pick up something by yourself, watch your lifting geometry. Back straight and in line with the center of the load. Lift with the legs, blah blah blah. Even for routine stuff like tool bags. Little damage is cumulative. I'm 24 and haven't @#$%ed my back up yet, so take that for what it's worth.