Keep your feet warm and dry.
Take care of your gear and it will take care of you. We all know how important it is to keep your feet comfortable and dry. Not only will it let you stay in the woods longer but it will allow you to keep your boots longer.
Waterproofing is remarkably simple to do yet I gather most of us probably don't take the time to do it. I am guilty of this myself, choosing to sacrifice a little comfort to be lazy and wear a rubber boot. If you are back packing or on a hunt that requires you to walk a long distance that may not be your best choice.
A key point is to focus on the eyelets of the boot. The stitching is normally weaker there, as it is constantly pulled on, leading to wet socks. Really coat those things you can always wipe it off.