Never underestimate what the American public is willing to put in its collective mouth
While we were in San Francisco, I saw an ad for the "WhiteLight" tooth whitening system. If you haven't seen it, I highly recommend you visit www.whitelight.com because it's extraordinarily entertaining. Basically it's a plastic, mouth-shaped "light transmitter" that you put into your mouth and turn on. The idea is that the light it emits will whiten your teeth. One user, "Michelle," notes that, "With the White Light system, it just, it makes it all possible for you to have those teeth that celebrities have." Teeth that, apparently, glow in the dark. Look at the pictures! I'm not making this up!



