As we all know,smoking makes a mess in your mouth. Coating your teeth in brown crud and whatnot. I finally got that all cleaned off. Hoping they will remain clean,now that i'm vaping. I'm concerned that coffee may make them dirty again.....it seems coffee is almost as bad as smoking as far as teeth stains go. Might start using Crest 3D white strips,since my dentist said they're okay to use. What are you folks doing to keep your teeth white? 