I don't bother with anything anymore. I used to special wash my clothing, took care not to get my clothing around my dogs, etc. Not anymore. I just play the wind when I can. Strangely, I have been busted by hogs downwind of me and I have not been busted by hogs down wind of me.
I tend to wear my hunting clothing over and over again, dirty (pants and sweatshirts, etc., but change underwear, socks and under shirt). When I get too much blood or mud on it, then it gets washed.
If I had to guess, mud, blood, sweat, etc. are much more natural smells to be wearing in the woods than so-called scent-free detergent washed clothing. Animals like dogs, hogs, and deer all have the ability to smell things that humans cannot smell.
Well, and there is that whole business where you stop breathing volumes of scented particles that goes with that. I think that is the hardest part of trying to hide your scent...no breathing.
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I have a buddy that always insists on stepping in cow manure at the start of a hunt. We may stalk all night, be in and out of vehicles, but we only step in manure once and somehow we are golden for the night. Apparently, the bottom of your shoe is the most important thing of scent that needs to be covered.