13. Brush your teeth with baking soda once a week




This will remove stains and whiten your teeth. Use it just as you would toothpaste. You can also use salt as an alternative toothpaste. Just be sure to spit it out so it doesn't count as sodium intake! Also, if your gums start to feel raw, switch to brushing with salt every other day.

14. Chuck your toothbrush...



...or change the head of your electric toothbrush at least every two to three months. Otherwise, you're just transferring bacteria to your mouth. According to Beverly Hills dentist Harold Katz, D.D.S., the best way to brush is by placing your toothbrush at a 45-degree angle against your gums and gently moving it in a circular motion, rather than a back-and-forth motion. aGrip the toothbrush like a pencil so you won't scrub too hard.