It may sound like I am being paranoid but ever since my neighbor got his house reposessed and he had to move, I noticed the ants coming in. I have never had an ant problem in this house in the more than three years I have lived here.
I tried poisons, though I didn't want to, and they did work but then once the rain in May subsided, they were back. I somehow managed to get rid of them back in the spare bedroom and got rid of the ones I spotted in my bathroom... but now they are BACK in the kitchen and the bedroom. I cleaned my kitchen from top to bottom with grapefruit cleaner. I cleaned the counters, cabinets, oven, stove, fridge, floors, even the dishwasher! and they are still coming in.
I finally figured out where they were coming in from, under my window sill so I placed the traps by that and placed a couple of them up in the cabinets, away from the food, where they seemed to be going.
I got rid of all of the open boxes of cereal and everything else is tightly sealed, so there is apparently NOTHING for them to get besides the poison! And get they come back again and again. I kill every one that I see because I figure that some of them are getting to the poison when I can't see them... but why isn't it working?
I'm so frustrated with this problem because I keep a VERY clean house and it makes me feel like our house is dirty.

Thanks in advance for any suggestions.