Tons of awesome advice in this thread and only one other member mentioned something that is pretty important... And that is patterning the other guys and gals. I know of 6 or so "regulars" by the vehicles they drive and Ive learned over the last 4 years as to what areas they go to. Most of the time that will greatly influence me as to what area Ill go to and how to access it. The place I go is very difficult to hunt and easy access is not very apparent. Getting to the areas where the deer get pushed to public is a great stratagy. I do see a lot of deer this way.
Naturally, this doesnt work every time, especially when gun opens, but during bow season, I see a lot of deer doing this.