The tooth fairy still rewards adults who keep their teeth nice, leaving grown-up gifts, such as issues of the Economist and Pontiac Azteks, under their pillows. Grin and win with this Groupon.

$79 for a Take-Home Whitening Kit ($300 Value) or $300 Toward In-Office Whitening

Before either treatment, the staff at White Summit Dental Hygiene Clinic screens teeth to ensure they’re healthy enough for bleaching. For the take-home whitening kit, the staff takes mouth impressions to craft fitted trays, ensuring the whitening formula coats teeth evenly. For the in-office treatment ($550+), a LED light works to coax out stains caused by coffee, tobacco, and wine in about 45–60 minutes of a 90-minute appointment.