Couple of things I have learned over the years:
1) Keep a pair of latex gloves in your Backpack, they can be used to keephands dry under gloves, or while cleaning game..
2) a $2.00 knife sharpener is a must,
3) baby wipes... enough said..
4) Bandana or handkercheif, another must
5) wear layers, weather can chage quickly...
6) and the most important..... Enjoy where you are, what your doing and who your doing it with... Life is too short to hunt with A$$ho!es.....