Yellow teeth indicate an addiction to smoking cigarettes, drinking coffee, or swishing with butter. Undo unsightly dairy habits with today's Groupon: for $39, you get one Absolute White teeth-whitening treatment at Better in Colour in Winston-Salem (a $99 value). The licensed dental hygienist at Better in Colour helps brighten patients' chompers with safe, effective Absolute White teeth-whitening treatments. During the 30-minute session, clients listen to music or watch TV from the comfort of a dental chair while the hygienist covers lips, gums, and delicate wax fangs in a protective gel. The tech then daubs teeth with a 35%–44% carbamide-peroxide solution, which, once activated under the glow of LED lights, instantly brightens smiles two to seven shades. The whitening effects of the treatment typically last 12–24 months, like most New Year's resolutions.