Before going out hunting, get wet in the shower, lather up with Fels Naptha, or Octagon soap. Don't rinse, just let the lather dry. Go hunting. When you get back home, shower as usual. It's a great alternative to daily applications of pesticides, and has enough glycerine to keep it from being too harsh, and drying on skin.
I love Fels Naptha. We have tons of bars here because when I find it we buy it out. It works great to remove oil from poison ivy (both on skin and in the washing machine) plus gets skunk odor out (again, both on skin and in the washing machine).