OH MY HECK!!! I was literally JUST about to post this same question. I was answering another one, and TWO ants crawled across my computer screen... I looked down and there are 6-7 of the little buggers crawling on the wall next to my chair! According to my SIL, when she took out our trash this morning it was full of them.
So I'm just going to watch your answers too. :)
Although, if your problem is living on an ant mound... maybe you could get some ant stakes. The ants take the poison back to their evil lair, and feed it to their queen... hopefully killing the whole colony. It might take a while though if you are on a big nasty one.
ETA... yeah, that's what I was talking about... You might also try spraying something really sugary, like a sugar cookie or something with the poison, and putting that near the holes? Ants love the sugar, so maybe that would help.