Sparkling white teeth and a million dollar smile is what everyone yearns for. However, teeth discoloration caused due to smoking, food habits, and bad dental hygiene can play spoilsport to your million dollar smile. While dentists can help whiten and brighten our teeth, not many of us can afford spending thousands of dollars on these professional treatments. Here are some natural teeth whitening tips, that will help you attain that pearly smile without pricey cosmetic dentistry treatments.