Cinnamon
Ants have a highly developed sense of smell and cannot stand the scent of cinnamon. Mix half a teaspoon of cinnamon oil with a cup of water. Soak a cotton ball in the mixture and wipe it over areas where ants are active. Repeat this process until the ants disappear. Place whole cinnamon sticks near doors, windowsills, and other entry points outdoors. You can also put the cinnamon oil in a spray bottle and spray ants directly when you see them.
