I keep a spray bottle of water with about forty drops of peppermint essential oil in it for many uses, such as spraying on my face, in my mouth, on bathroom fixtures, etc. It is so handy! I recently discovered the most amazing use of all: It cleans windows and mirrors so streak free that the glass seems to disappear and even stays clean longer. It is also great to clean eyeglasses. Try it, you’ll be amazed too.