Amazon offers the Mr. Clean Magic Eraser Extra Power 4-Pack
for $2.74. Add it to your cart via Subscribe & Save and it drops to $2.60
with free shipping
. That's pennies under our mention from two weeks ago, 65 cents per pad, and $9 under the lowest total price we could find for this quantity elsewhere. They purport to work with water alone and can be used to clean appliances, walls, floors, and other surfaces.