get whiter teeth

using the crest whitestrips, but I always flake out and stop using them, or I don’t use them enough, so it doesn’t do much. The next time I go grocery shopping and have enough extra in the budget, I’m going to buy them again, or maybe try one of the newer kinds of things (what does anyone think of different products?) and try to stick to it this time. I already use a sonicare toothbrush, and whitening toothpaste.