Fight Ants: Trade Secrets! (Part of a weekly series "Know Thy Enemy" on the BrightNest blog)
Did you know that cinnamon is basically ant Kryptonite? Deter them by lining your walkways and doors with cinnamon. More ant-fighting tips:
http://blog.brightnest.com/2012/07/08/know-t...
My mother used to use chalk on her patio to keep the ants out and about 10 years ago I heard that diatemacious (bad spelling) earth was really good to work into the earth surrounding your house to keep ants away. But I am glad to hear about the cinnamon as that is much easier to find, a bit cheaper, and it smells good!
Personally, I like the cinnamon idea better.