I have known about the many uses for essential oils for quite some time because we have a family member who uses them for everything. Really, essential oils are amazing. You can find them at local health food stores for $6-$8 each. The other day, I picked up peppermint oil and noticed a brochure at the store explaining the many uses. One use was to fight ants. This really caught my eye since we've been battling them at our own house the last few weeks.
All you have to do is put a little peppermint oil on cotton balls or small pieces of sponge and sit it around the house. Be sure to add a little more oil once a week. I've asked around and several people have said it works. I'm going to try it this week!