Ha - I have a new cleaning friend and they are microfiber towels! THROW AWAY your window sprays - you don't need them anymore!! Seriously - your window and mirrors will be streak-free if you wet a corner of the towels with water and wipe down the surface you want clean!
~ Make Swiffer reusable mop heads with them
~ Throw away the paper towels (and never buy them again) and use these instead
~ Making your own cloth diapers? Use these as the inside stuffing (very absorbent)
~ And if you're really lazy - or super-efficient - make some slippers out of them and have your kids run around the hardwood floors for you! :)