Baking Soda: The Non-Toxic Way to Get Rid of Ants - Ants.com
Soap and water: A mix of dish soap and water will coat ants and suffocate them. However, this only works for killing individual ants. Water and vinegar: Spray a mix of water and vinegar around doors and windows to keep ants from entering your home. You can substitute vinegar for lemon juice if you prefer.