Lots of real world advice already given, but one thing to remember has not been mentioned. If you wash shorts in a sink or a shower, make really sure that you rinse all the soap out fo the pad. I skimped on rinsing once when the sink seemed as though it was going to fall off the wall, and the shower was not draining and just to dirty looking to use anyway. I got a pretty good rash the next day, that was uncomfortable for the next few days.