12.  Use Cola as a Pesticide

Undeniably, Coca-Cola contains numerous ingredients that are harmful to the human body. However, it can surprisingly have practical applications in and around your home, including your garden. As a do-it-yourself pesticide, you can utilize it by spraying it on your plants. Although the ingredients in cola do not directly eliminate pests, the sugar content attracts ants, which subsequently consume the larvae of the pests without causing harm to your plants.