Kiddo off to get supply for school:
"While I'm at it, shall I also bring xyz cleaning detergent for the bathroom? We ran out of it."
Me: "Yeah, thanks."
Kiddo: "Do we actually have cleaning cloths? We always use sponges or the paper towels."
Me: "Have a look in the middle kitchen drawer."
Kiddo (came back with the cleaning cloth-thingies): "But those are nice ones. I mean those that you can make dirty."

Me ..... simply at a loss for words to explain the philosophy behind a cleaning cloth.