You can use Vaseline to ward off ants, bugs, and other pesky pests. A thin layer spread on windowsills and door thresholds will trap crawling insects, keeping them away from your family and pets. You can also use Vaseline as natural flypaper: Trap bugs by placing a small amount of jelly in a jar lid. Once the pests are stuck, throw the whole lid away. Finally, if squirrels keep raiding the bird feeder, coat the pole or hanging bracket with a layer of Vaseline—the squirrels will slide right off!