Minerals are not only the main components of the Earth's crust, but some of them are excellent stain-lifters. Minerals seriously rock.
Magnesium Chloride Hexahydrate (mineral-based ice melt), Calcium Chloride (mineral-based ice melt), Potassium Chloride (mineral-based ice melt), Sodium Chloride (mineral-based ice melt).
For clear paths, remove loose snow and ice before applying. Sprinkle walks and driveway evenly with 1/4 to 1/2 cup per square yard. Shovel off resulting slush. Thick accumulations of ice may require additional applications. Applying before snow or ice starts forming will help prevent ice bonding to surfaces.