Which over-the-counter teeth whitening kit is the best?

I'm referring to the ones that you could find at your local Wal-Mart or Rite-Aid or Walgreens or whatever.
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try not to use the strips, i mean everyones different and all the whitening feels weird, but even if u wipe ur teeth dry before sticking them on, they will still mess up, so u want to use the ones with the disposable brush (i believe crest makes those) so it will go directly on, not stick to ur lips and u control it covering all ur teeth, not just the front middle section.
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