Onions and cloves can be an effective natural remedy to repel insects like flies and mosquitoes. Onions contain sulfur compounds that release a strong odor insects dislike, while cloves have eugenol, a compound with insecticidal properties. To make a simple repellent, cut an onion in half and insert several cloves into the exposed flesh, then place the halves in areas where insects are common. This combination creates an unpleasant scent that keeps pests away without harmful chemicals, making it a safe and eco-friendly alternative to traditional repellents. This remedy is easy, cost-effective, and perfect for those seeking a healthier, pesticide-free way to keep their home insect-free.