Wirelessly posted (iPhone: Mozilla/5.0 (iPhone; U; CPU iPhone OS 2_2 like Mac OS X; en-us) AppleWebKit/525.18.1 (KHTML, like Gecko) Version/3.1.1 Mobile/5G77 Safari/525.20) Have you ever used teeth whitening products, such as white strips? I used Aquafresh trays before for 7 days and they did an ok job. Shortly after my teeth looked discolored. (I'm not a smoker or a coffee or tea drinker) I'm giving Crest Whitestrips Classic a try at the moment. I find them messy. The gel is always seeping out and it tastes wicked bad. I'm always afraid to swallow it. But anyways, away from me... What had your experience been with whitening products? What worked the best and lasted the longest?