Run out of mouthwash, and no time to get to the store? Here's an effective fill in, and can actually be used all the time. No iffy ingredients, all natural. Start by boiling one cup of water, stir in one teaspoon of baking soda, 2 drops of peppermint flavoring or if you like, vanilla, spearmint, whatever you like best, and then add one drop of Tea Tree oil. Stir well, store in sterile container. Told ya it was easy.