A wonderful bathtub scrub I stumbled upon and adapted. The original recipe called for plain castile soap but I really enjoyed the addition the peppermint oil added to this. I also added rosemary essential oil to this, and it made a yummy smell that filled my house.
Peppermint Tub Scrub
1/2 cup baking soda
1/2 cup Dr. Bronner's Peppermint Castile Soap
optional: 15 drops rosemary essential oil
Mix until you have a pasty consistency. Use to scrub bathtubs, sinks and tile surfaces. Rinse with water.