Best product to make your teeth whiter?

I want my teeth just a tad bit whiter because they're already pretty white....does anyone know a product that seems to work well but doesn't cost too much cuz hey I'm a college girl...can't be spendin lots of mulla?!

Best product to make your teeth whiter?
My friend uses something from GNC and it really works. So try that store. It is some sort of cream for teeth.
Reply:Well,, what i do is, I use peroxide after my regular brushing just poor some over the tth brussh a couple of different times, keeping ur mouth closed but don't swollow it, then rince. I am telling u it works, my family and friends noticed it........also baking soda, my dad had us use it when we were kids, taste nasty but usually when something taste bad it means it works.