Amazon offers the 3M Headlight Lens Restoration System, model no. 39008, for $8.59 with free shipping via the directions below. That's the lowest total price we could find by $7, although we saw it for $6 less in December. This automotive headlight kit purports to remove scratches and restore cloudy, dull lenses. Rebate ends May 31. To get this deal:
  1. View the 3M Headlight Lens Restoration System for $15.99
  2. Add to your cart via Subscribe & Save to cut it to $13.59 and bag free shipping
  3. Redeem this $5 mail-in rebate for the final price of $8.59
Be sure to cancel Subscribe & Save after your order ships to avoid being billed for subsequent shipments.