SKane and tzone hit on it.
Another thing I see people (some of them friends) make is the idea that because they're in the woods and deer are in the woods - they're in the right spot. Ask "why am I sitting here?" - trails between bedding/food? Deep cover? What? Why are the deer there? Answer that, see it's productive and if a stand isn't - chances are it's because some other change has happened to affect the deer.
Also don't hunt a good stand in bad wind. Quickest way to make it a bad stand. Even if I've seen deer the day before out of that stand - bad wind, I don't sit and push it.
