Amazon offers the 3M Headlight Restoration Kit, model no. 39084, for $4.29 with free shipping, via the directions below. That's $3 under our June mention and the lowest total price we could find by $6. This automotive headlight kit purports to remove scratches and restore cloudy, dull lenses. Rebate expires December 31. To get this deal:
  1. View the 3M Headlight Restoration Kit for $13.28
  2. clip the $2 off coupon found on the product page to drop it to $11.28
  3. add it to cart via Subscribe & Save to cut it to $9.29
  4. redeem this $5 mail-in rebate for a final price of $4.29