One of my biggest mistakes was setting up to close to to the sign I was hunting. Setting up just a few yards off of a scrape and when a buck would come in, I was pegged down. This season it was a bunch of crab apple trees that the deer were really hammering. I set-up right on the edge of them and the woods around were pretty thick, the deer would be on me before I could get ready.

Keeping an eye on where my shadow is hitting the ground, actually scared a nice buck off a few years ago when he saw my shadow moving on the ground.

Picking stands that afford the most viewing area and most shooting lanes (also happens to mean that the deer don't have to pass by in shooting range)

Spray scent killer on your tow rope after handling it, no sense in having a 30' human scent wick

Don't be affraid to go against the grain with stand sites. My one stand site this year wasn't between a feeding area or a bedding area, it was an area that the deer really had no reason to be in, yet their was sign and I saw alot of deer including three really nice bucks from that stand.

ALWAYS PUT YOUR CELL PHONE ON VIBRATE