Most of what I have found and do has already been said. I have had great whitetail and turkey success from hunting only public land the last 15 years. I have came up with some rules that seem to have worked out for others I have help come up hunting.
1. Scout- After season is all over and you hang up your bow, get down your hiking boots. This is the time to get out and pattern deer behavior for all area you hunt and even check out new area. Effort and recording information now is priceless. Thank Gene Wensel for this one long time ago.
2. Ariel scout- no not plane, use topo maps, and understand the true lay of the land. I find this a great exercise in the "lull" to help me picture in my mind what it looked like in fall and will be in spring.
If more people do the above be more successfull, and minimize "alerting deer" for all.
3. Preseason scouting- I will go into the area and scout around in august or first week september. Just to see what patterns are looking like and compare to my late findings, I will have two to three spots picked out, just in case there is another hunter there before me.
4. Once season opens- I play the wind, especially on entering and leaving, I think alot of hunters forget this part.
5. Use hunters- other hunters will change deer patterns, know this and use it to your advantage, worked for me more than once, and leads to.
6. Hunt game not tree's! I love hunting out of a stand, the view is great. But, longtime ago I learned if no good tree then the ground it is.