Ever since James graduated fungus cum laude from old Mildew U., we have been giving this famous formula to eliminate mildew. And you can use it on any washable surface. All you have to do is add one quart of liquid laundry bleach and one cup of powdered laundry detergent (less if concentrated) to three quarts of warm water. Scrub the solution onto the mildew-affected area, and make sure to keep it wet until the black mildew turns white. When mildew changes color from black to white, it's dead. Although this is a relatively safe concoction, make sure to use eye protection, wear rubber gloves and make sure there is plenty of ventilation. And that's the On The House tip for today.