Dear Umbra, Being a new homeowner, I've realized the responsibility of keeping the sidewalk slip-proof during the winter months. Of course, shoveling will be the first line of defense, but that never seems to do the trick, often leaving that thin layer of slippery snow. And then there is the ice. I know that salt and sand can be fairly nasty to local rivers and streams (not to mention the white stains on my floors). So what are the best alternatives? Everything I have been able to find seems to contain something equally scary. Am I doomed to slippery sidewalks? …
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