My backyard is a jungle, so I use Frontline on my dog Zach to kill fleas and ticks. But I don't know what, if anything, it does to actually repel mosquitos and other biting insects. I still see mosquitos buzzing around him in the summer, and he's such a hypochondriac that whenever he gets bitten, my tough terrier takes to the couch or my bed for the rest of the day.

Buzz Off now makes a mosquito-repelling bandana for dogs (repels other biting insects too). This washable bandana comes in ocean blue, red and khaki, disguising itself as a casual fashion statement so your dog doesn't have to feel like a nerd.

Available at Orvis for $15.