I heard about them, and mentioned it to my family one day, my older brother, who is unmarried, very frugal and loves mechanics, decided the next time he was at the automotive store to look for them, well, all he could remember was that I was using them for diapers, so he found a package of cloths that said "diaper soft cloths" assuming they were what I was talking about, he bought me 3 packs. Well, it was not microfiber towels, just cottom cloths that are soft "like cloth diapers", but......
On topic now, I did go buy some microfiber towels at walmart to use in my son's HH, and I really love how inexpensive and trim they are (and no bleeding with the blue after the first wash). I would not use them against baby's skin at all though.