Put a tiny bit of toothpaste into a small cup, mix in one teaspoon baking soda plus one teaspoon of hydrogen peroxide, and 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. - And to think I almost shelled out $40 at the store for some whitening strips!
Another pinner says: I just did this to my sink and it looks just as shiny as the picture. I didn't think my old, nicked up, stainless sink could look so good, but it does! How to make your stainless shine.