Well, I hunt in the mountains in NY and there is always a chance that you get lost and have to spend a night in the woods, so I always bring a lighter, a small container of lighter fluid or butane, and some gatorade. I recently purchased a GPS, so my odds of getting lost aren't as good anymore, but you never know when that thing will break, or when I'll be caught out there in a storm and won't really get any satelite reception. Also, I always bring in plenty of doe and buck urine and a grunt call. Also, my hunting license and tags, a little snack, like a candy bar or some slim jims, some orange tape to mark where I find blood if I hit a deer, and a mask. There are probably things that I'm forgetting too of coarse.