What's a natural way to whiten your teeth?

I want like.. Bright, bleach white teeth! What can i do? Something Cheap.. Or somethign that maybe i could find around the house! Thank you ! :D
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use that pre-rinse.....yea. I have No guarantee...but...since i've used it ppl have been asking me if i bleached my teeth. oldy enough. Listerine whitening....yep http://img2.timeinc.net/instyle/images/2…
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