How often do you wash your caps?
I don't wear caps until when I started playing pickleball. I sweat a lot. I have a cap that has permanent sweat stains that cannot be washed off any more.
Of course, washing after each play is one extreme but not practical or realistic imo. I am wondering if there is a sweet spot on the number of wears or amount of time that can prevent permanent staining. Surely washing something like weekly would be a good compromise, but I am just curious what other people do.