Just wash mine with reg. laundry... The key is wind direction...put the wind in your face...I dont think you can get clean enough to fool a whitetails nose...just my 2 cents.

I wash in scent free soap and dry in dryer.  Then I pack them into a scent loc bag and a large plastic container with foam seal tape under the lid to keep out the camp and truck smells.  I keep all my main gear in the box like my small pack, glove, hats, harness.....  I use the scent killer spray to kill the scent on boots and gear from time to time.  When I open that box it is like breathing in pure oxygen.  

I do all I can to kill the scent on my base layers I wear to the field and my body.  I was the base layer stuff the same and store a couple sets in plastic bags until I use them.  Then I dress in the field.  

Sounds like a lot of work and many would say it is a waste of time, but I have killed a few deer and passed on many that were down wind.  They will know you are around, but there is a big difference between knowing you are close and thinking you are far.  I had a deer last year catch me in a bad place where I couldn't do much about it.  Had him at 25' down wind.  Sure he winded me, but he also figured I was a lot farther away than I was.  He would have been dead if I had wished it.  He stood there looking around a good two minutes before he got nervous and took off.  A couple weeks later I had the largest buck of the year catch me 4' up a tree when he ran right past me.  He then circled in looking for a 4 pt. I had kicked up near the base of my stand.  He came to within 10' of me on the opposite side of the tree before he picked up my scent and spooked.  He only went 20 yd. and circled back in again at about 12 yd. looking past me.  He was nervous, but if he knew just how close I was he would have been long gone the first time he past me.    

If I hunted on foot most of the time on large tracks of land I wouldn't bother near as much with the scent control.