All I can say is that when not at work I have been at the gym. You know your doing it right when breathing hurts the next day. Learned the lesson last year, getting in shape is a must for a hunter. Going to scout hard this year and have been saving up my vacation time to take a good amount of time off to really get into the field. Also looking to pickup a pistol and become very proficient in it ahead of the season.
Biggest lesson I learned this year is that if there is a road to it there won't be good hunting. You should be good and sweaty before you get into your hunting spot. Maps are your friends too. 2013 is going to involve buying a house and a nice big freezer.