One of the biggest threats comes about once per year in most areas of America, during the winter it strikes. Nearly one million Americans slip on snow or ice each year, and 17,000 of these falls will result in a fatal injury, according to the CDC. There are three items whose combines usefulness have been sworn to by thousands of Americans throughout the winter months. Sodium chloride rock salt, sand and kitty litter. As strange as the last item seems, it is very useful in a slippery situation.