This deal has ended.
Get this Ultimate Teeth Whitening Kit by Smile Kits for $29, a $169 value via Groupon.com. The kit includes peroxide solution, pre-treatment liquid, two heat-forming mouth trays, an LED light, and a shade chart. The kit is well reviewed. There is a limit of one per person, and shipping is included (except to AK, and HI, where it adds $5).