My previous post got me thinkin about hygiene and reminded me of an amazing trick that has really helped me out. Alright, it's not much of a trick, but most people don't realize you're supposed to do it. When you brush your teeth, don't rinse it out! spit out as much as you can, wipe your mouth off, and let the toothpaste do work. toothpastes has certain kinds of fluorides in them that need time to work. give it a try! your teeth will feel stronger and start to whiten over time!