For a lime scale remover, you will need: 1/2 c baking soda, 3 T water, 10 drops lemon and lime oil. Add water and oils to baking soda. Mix into a paste & rub a small amount on surface. Let sit for 20 minutes. Wipe off with wet cloth. . For mold spray, mix: 4 oz white vinegar (use for a full strength mold spray. If smell is too much, use 2 oz vinegar and 2 oz distilled water), 2 drops lemon oil, 3 drops melaleuca oil, 1 drop on guard oil. Combine in spray bottle and shake before use!