Today I used baking soda as toothpaste and I don’t think my mouth has felt quite so nice in a long time. For one thing, I swear my teeth are brighter. For another thing, my mouth usually feels like its icky morning breath is being covered up when I brush, but today I feel like it was deodorized. Also, baking soda is only 50c a box, pretty good deal since toothpaste runs at at LEAST two dollars. Especially for the sensitive stuff I use.