I can't sit all day either. I usually sit till 10:30 or 11:00 then back at 2:30 or 3:00. I do it every year, but I never see anything after about 9:30 or before about 4:30 in the evening. You'd think at least once I'd jump something on the way in or out. This will be the first year I've had a chance to hunt over a food plot, so maybe I'll try all day this year.