RE: anyone knwo how to minimize human scent?
Never heard of Mexican vanilla, it's worth a try. Regular vanilla extract diluted with water also works, I've heard it smells like acorns.
Another real good cover scent is Rack-Koon by BuckStop scents. Raccoons are everywhere, deer don't feel threatened by them, and they sleep in trees, so it makes a good cover scent for any type of elevated blind. You also need to spray your rubber boots with the cover scent before you walk to and from your stand, otherwise your scent trail will spook deer for more than a week.
Of course, wash clothes, body, hair, etc. with a good unscented soap and don't expose them to any scent contaminants before going to your hunting spot.