My dentist actually told me about this. Use a little toothpaste, mix in one teaspoon baking soda plus one teaspoon of hydrogen peroxide, half a teaspoon water. Thoroughly mix then brush your teeth for two minutes. Remember to do it once a week until you have reached the results you want. Once your teeth are good and white, limit yourself to using the whitening treatment once every month or two.
I love this girl's blog about thrifty living :) here's a quote from her blog: "Oh yes ladies and gents you did not read wrong. I am 100% serious. My family of 4 lives on about $14,000 a year. We are not in debt, and own our home and both our cars. Want to know how we do this all and still save money? Well I am going to share some tips that have helped us along the way."