Okay, so my teeth aren't really all that yellow, but I can see that they are kinda stained and my bottom teeth look more stained than the top. I've used whitestrips a few times before in the past and it seemed like it worked then.
I have an obsession with keeping my teeth as white as possible and I brush my teeth at least twice a day, sometimes more. For Christmas I got a Sonicare toothbrush and the Crest kit that had the Pro-effects strips (the most expensive ones that are supposed to be as effective "as a $500 treatment"), the 3D mouthwash, and the 3D toothpaste.
I use the whitestrips once a day like it says, and I use the mouthwash and the toothpaste twice a day. It can't be my toothbrush b/c I've now got a fairly nice one...but it's been over a week now and I see no improvement. I only have 8 applications left. What can I do to make them work any better?