I know a lot of guys who use just baking soda or baking powder (I'm not sure whick is correct, but it does make a difference). I use the non-UV enhancing, scent free detergent, like they sell at Walmart to take away my leftover stink. However; after I hang it out to dry, I put it in a plastic bag filled with leaves, pine branches, split acorns, etc. so the clothes absorb the "nature" odors. I try to use branches from trees found in the area that I plan to hunt. I use a ground blind trying to shadow a tree and just blend in. I figure I stand a better chance if I kinda smell like a tree also.