A good set of binoc's are crucial, imo. I don't stalk during bow season, but I spend most of rifle season still hunting in thick brush. To me using the wind and moving slow are givens, but I feel one of the kickers that people forget about are good binos that you can use to really pick apart the brush and everything in front of you. Sure, nothing will substitute having excellent eyesight and observational skills, but having good glass in hand is invaluable.