Fruit flies can appear from almost nowhere and turn your tranquil kitchen into a jungle nightmare. Instead of reaching for the chemical insect spray, try this time-tested and nontoxic alternative instead. Simply fill a bowl with white vinegar and add a few drops of liquid dish detergent. The flies will be attracted to the vinegar and the soap will coat their wings, making it impossible for them to fly out. In a few days, your fruit fly problem will be solved.