A few things can keep me in the woods all day.
1. A very promising spot at the right time of year.
2. A comfortable stand, with the right gear.
3. A plan for the day. ie Sit in one stand until 10:45, then move to another stand a half mile away till 2:30 then back to an evening stand. If you done your homework, and it is early in the season, there is no reason why you can't reasonably pattern some deer and up your odds in certain locations.