Smiles are easily brightened with a tub of yellow paint and a large mass of glitter, although it can cause people to be mistaken for a clown and cream pies to be thrown at their face. Illuminate grins without the mess with today’s Groupon: $39 for a 30-minute cosmetic teeth whitening treatment at Prestige Smile in the CBD ($199 value).With a central George Street location and an array of the latest whitening technology, the bite brightening experts at Sydney’s Prestige Smile make it easy for all Aussies to enjoy a glittering, glowing grin. Settle into the comfortable surrounds and take a step towards a more confident smile with a 30-minute in-chair teeth whitening treatment. The treatment helps to safely and effectively reduce the appearance of stains caused by smoking, red wine, coffee, tobacco, tetracycline, fluoride, hereditary discoloration and rainbow ingestion, and is able to whiten teeth by up to three shades. Groupies also go home with a $50 voucher to use towards a future visit.