Are your outdoor cushions looking drab, dull, and grimy after the Summer? Brighten and freshen them with with a solution of 2 tablespoons of Castile soap, 1/3 cup of 70% isopropyl alcohol, 10 drops of peppermint essential oil, and 3 cups of warm water in a spray bottle. Spray the cushions and brush gently then air dry. The soap loosens all the ground-in dirt while the alcohol and peppermint disinfect and neutralize musty odors