Sprint, do you not find the use of magic erasers gets a bit expensive? Even the cheapest ones that I can find are over 50 cents per piece, and they disintegrate quite quickly, so I'd imagine you'd need 2-4 per household. At 2 per house, 3 houses per day, that is $3/day for just one team of cleaners, $60 per 20 day work month! I like them, but they're more of a treat for me! Our own cleaning products work just as well and as quickly, provided product is given time to sit and do it's thing before tackling with a reusable sponge. The product costs less than $10/m per cleaner.