Review (5/5): This reminds me, I need to order a couple more...
I get pretty dirty working on diesel engines, and these work so much better than a cotton washcloth for getting the grease off. What used to require Dawn dish detergent and vigorous scrubbing now requires a simple bar of soap and a couple light rubs with the Salux. Just don't get them on of your more "sensitive areas," because it's not a nice feeling!