I tend to bring reading material with me. Usually magazines. I'll read a paragraph, look up, read some more, look up. And so forth. However, I should caveat by saying that I too have a lot of trouble sitting all day. I almost always take a break around lunchtime. Most often, I'll get out of the stand and go get something to eat. Usually at the local diner or just back to my truck if I bring something. Sometimes I take a quick nap. Many times when I head back out, I'll try a different stand just to have a new patch of woods to look at. Following this procedure, I'm able to hunt from sun-up to sun down. My midday break is rarely over 2 hours. Obviously I risk not seeing something in that short span. My opinion is, so what? I'd much rather ENJOY hunting than EN DOUR it.

I have sat in one spot all day long though on a couple of occasions. One time was in a blind. I had food, reading material, and a very comfortable chair. I let an arrow fly at a large doe that afternoon but missed rather badly. I should mention that I fell asleep around 10am and slept for about 2 hours!