Some time ago I heard that microwaving your moist dishcloth for 2 to 3 minutes (depending on your microwave) will sanitize it. I have begun doing that every evening following dinner dishes, but there is an added bonus. The heat and moisture loosens anything on the walls of your microwave as well and a quick wipe-down with your heated cloth will make it sparkle. My microwave looks totally brand new since doing this faithfully, and it is almost a year old!
By Lee from Southeast WI