Whitening teeth?

what is the best product
for whitening teeth that is the most affective?
i have tried crest white strips, but they dont really seem to do a whole lot.
please tell me what you have tried to whiten your teeth and if you liked the
results or not.

thanks a bunch! :)
The best over the counter is "Rembrandt". But a word of caution, if you have any
dental restorations. They do not bleach.
They forever stay the same shade. Also, if you really want to do it right, see a
dentist. It costs more, but you have support if you run into problems. Like
sensitivity, swollen gums, uneven bleaching, etc. As a dental tech. I always
advise against bleaching because it can make your teeth look like chalk. And
this looks unnatural. And it is real hard to match when a restoration is
required.
the most effective method is to go to your dental office and have them make you
take home bleaching trays.
Try Colgate Advanced Whitening .It remove stains. . .
I too tried Crest Whitening Strips, they worked really well
though!!