Looking old is about more than wrinkles and dull skin. It’s about the whole package. Drab, yellowed teeth are also a sign of age. One of the quickest ways to “youth-ify” your look is to brighten your smile. This doesn’t have to mean you spend hundreds of dollars on professional teeth bleaching. The at-home kits available in drug stores are very effective. You can also help keep your teeth looking brilliant by brushing after every meal, and after a cup of coffee or a glass of soda. These brown liquids quickly stain teeth making it hard to keep your pearly whites white.