Let me check with the wife....

I hope she doesn't read this...  

I seldom wash my outer clothes but will wash my longjons and tees when they start to stink or stand up in the corner by themselves, which ever comes first.

I bought a pair of pants from cabelas and when I got them it said hand wash only on them. Going on 20 years now and never washed.All my other hunting clothing except wool get washed after season is all over. Wool got dry cleaned this year so its good for another ten years. Frank

I change inner layers every hunt and wash outer camo layers every 3 or four hunts...