How to get rid of ants?

I have little black ants in the walls of our home. I've tried a lot of different things and still can-not get rid of them. Could you please tell me a method that works. Please and thank you!

Well seeing as they're in the walls of your home you're going to have to call a professional exterminator. It's one thing if they're just randomly coming in from outside for food, but if they're residing within the walls of your home then standard methods won't work. Just search the Yellow Pages for Exterminator.