I've seen these (not the Mr. Clean brand) at night markets and NT$50 stores in Taiwan (sort of like a "dollar store" in the US) and also in Japan... stop looking at the thing and feeling it in your hand. Try using it and then tell everyone how you feel about it! It does some cool stuff...
I didn't think the leather upholstry in my car was all that dirty. I used an equivalent to this thing, and the results were awesome! I tried using a plain old sponge... it didn't do anything.
Takes away water marks in the sink and fixtures and all kinds of stuff.
Try it! It's free!