What teeth whitening products work for you?

I have been trying to find a way to whiten my teeth, so I don't have to spend $500+ at the dentist. I have tried Listerine whitening mouthwash and Crest white strips a long with several whitening toothpaste. I have not been successful with any of those products. Have you tried anything that work that is not going to break the bank? Thanks
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I know you probably don't want to get in-office whitening, but hear me out for a second. The laser whitening is very expensive, around $500 which is what you were referring to in the original question. However the whitening trays that you can buy from the dentist are much cheaper. Think of it as like a midpoint between costly laser whitening and cheap over the counter products. Buying whitening trays from the dentist is almost like an investment. It costs more in the beginning because you have to pay for the trays. But you will only need to buy the trays once! To buy refills of the gel for touch-ups only costs about $15-20 per tube. Touch-ups only need to be made as necessary and since the office strength gel is more effective, I only have to do mine about 2x a year. The gel tubes cost less than Crest whitestrips, which usually run at about $40/pack. And I find that Crest whitestrips don't really keep your teeth white unless you continue to use them. TIP: If you want the trays made for cheap, see if there is a dental hygiene school near where you live. Usually for a nominal fee you can have an appointment with a student who can fabricate the whitening trays for you at the school. My school charges only $10 for this! And if you still are against trying the dentist trays I can tell you I like Crest Pro-Health toothpaste. It's really good for removing surface stain and making your teeth feel super clean.
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