Amazon offers the 3M Headlight Restoration Kit, model no. 39084, for $4.15 with free shipping via the directions below. That's about a buck below our September mention and $7 under what you'd pay in-store locally. 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 Restoration Kit for $10.76
  2. add it to cart via Subscribe & Save to cut it to $9.15
  3. redeem this $5 mail-in rebate for a final price of $4.15
Be sure to cancel Subscribe & Save after your order ships to avoid being billed for subsequent shipments.