My gloves go in the wash; and then laid out in the sun to dry. Oxyclean in the washer helps with odors.

Everything else, helmets I wash in the sink occasionally when the salt on my strapes build up. I use shampoo and that seems to work. To keep down odors, I have been doing this for 3 years on my helmets and shoes and it works. I keep handy a little spray bottle filled with rubbing alcohol; the cheap stuff. After every ride I lightly spray the inside of my helmet and shoes. Its kills off any bacteria that would form and cause odors. I do occasionally wash my shoes if they get dirty and muddy. I can't believe I do this but I've had no issues; I wear leather Sidis... I fill the sink with warm water and alittle bleach, soak the shoes and then let them dry (outside in sun is preferable). The leather has stayed soft and the odors are knocked down.

Probably most important is after each ride your clothes, equipment including shoes, helmet and gloves is either sprayed, put out to dry or cleaned. I never allow my stuff to sit wadded up and damp for any length of time. Even if I can't get to washing it right away, I'll just put it in the sun or someplace to dry out before dropping it into a hamper. I've found out once the funky smell takes hold, nothing gets it out.