There are several types of ants and many of them are attracted to homes for various reasons with food and shelter among them. Even though there are some powerful chemical ants killers out there, you can safely deal with almost any ants invasion without chemicals. Ants are very persistent insects and unless they are completely eliminated from your area they would definitely come back. So find their base and destroy it. Cornmeal is one of the cheapest and effective ways to get rid of ants from your environment. You can easily find their hiding place by following them and then sprinkle it on to them to eat it. This is a fast way and very environmental free product and it has no effect on children as well as our pets.