You might pick up some EvoraPlus. It's a probiotic mint that they say cleans and whitens your teeth, as well as clearing up bad breath. I've only been on it for about a week, so I couldn't say if it really whitens (stuff I've read says it takes 1-2 months to notice whitening). It sure does make your mouth feel cleaner. It's about $20/month (drug stores), but it's also supposed to slow gum recession and prevent bacterial problems like gingivitis.