Wow. Stinky helmet straps?
This has not occurred to me.
I guess the lack of humidity helps keep the stink down.
In the past, most of my helmets were cheap. I would just buy a new one every 2 years. I have a nice helmet now. Might have to break out the soap.
Don't think me a pig pen. Shorts, socks, and jerseys get washed after every use. Gloves once a week.