What works better for whitening your teeth?

Any type of toothpaste, product, or anything that would help whitening your teeth?
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I know the answer because I have been whitening my teeth for several years. I use Crest Whitestrips. The first time you use it, you may have to use two boxes like I did in order to achieve the whiteness level you want. Then I use one box about once a year. And don't use the fast acting ones, like the seven day whitening, because I found that the results are not as good as using the two week box. Not to mention the seven day box just has more whitening agent, which will cause more tooth sensitivity. Another thing is not to use generic brands. I have found those not effective at all, and a waste of money just trying them. In between the boxes, I use Crest whitening toothpaste (3-4 dollars). It has the same amount of whitening agent as Rembrandt (8-10 dollars), which I think is really expensive. Don't forget to floss and clean your tongue. No one wants a white smile and bad breath. (I tell my sister that all the time).
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