How do you whiten your teeth at home?
I heard brushing your teeth with baking soda works
For more details, check out easyteethwhitening.org
You can go to the store and buy chrest whitening strips, they work wonderfully.
Options for this will include professional or at home whitening. The professionals will be able to safely whiten your teeth with the knowledge of how to whiten sensitive teeth. However, this can be quite expensive. The at home teeth whitening kits are much cheaper, but without expertise may lead to damaging your teeth.