I just thought I'd share something interesting. This "creation" was posted on the OneBagOneWorld site. The author calls it "stinkfighter", it's a mix of Febreze and antibacterial soap for doing laundry. It actually works!
Most of the microfiber shirts and underwear now come with anti-microbial (stinkfighter) already in them. I saw his approach. I'm not sure I'd be happy not rinsing my clothes completely to let the formula stay in the clothes. Maybe if you washed and rinsed first, then rinsed with his mixture...
I think you would get the same results washing your clothes, then spraying lightly with fabreeze's anti-microbial formula when you hang dry them.
I always bring some fabreeze anti-microbial in a carry-on size spray bottle. It's good for eliminating cigarette smoke, animal odors, body odor or any other odors you might pick up on your trip.