Deer Tip...
After you have field dressed the deer, CAREFULLY save the bladder (get everything out first and use a different knife) and place in a zip-lok baggie...when home, wearing gloves, drain the bladder into a small glass bottle...
real Deer Urine...freshly bottled...this is especially good stuff in November when the does are in heat and the bucks are chasing...
Also save the tarsal glands...