Already planning your summer vacation? If you're taking your dog, think the beach. Salt water can help your furry friend have a healthy coat. Instead of reaching for toxic and potentially harmful sprays, collars and other medications to control fleas on your dog, let him go for a swim in the ocean instead. Researchers in Mexico noticed that dogs that regularly swam in the Gulf of Mexico did not have any fleas due to their regular dips in salt-enriched water. Salt is a natural deterrent for fleas and will dry out existing fleas that may be harboring in their coat. Not ready for a vacation quite yet? You can also add salt to a regular bath at home to give your pooch a natural salt wash.