Because of the way our demented cat chooses to eat his food, we end up getting ants. The pics below are not of the actual ants but of the food that Chumley scoops out of his bowl and scatters across the countertops thus attracting ants from the windowsill in warm weather. I have to obsessive-compulsively swipe down the counter every couple of hours in order to keep the ants at bay. And as soon as I'm down swiping, Chumley's right back there scooping.
Below is an old pic that was taken the day after we put our house on the market in Minnesota. Tom got the call to come out west, and within days the house was up for sale. As soon as that sale sign was staked in the yard, we were not welcomed with potential buyers, but an infestation of GIANT black carpenter ants. And they were headed straight for Chum's food bowl. Here's a pic of one of the bastards carrying a kernel of Chum's food across the kitchen floor back to the queen who was living under our 3 season porch and was supposedly the size of my shoe. (click on the pic to enlarge...if you dare)
I imagine once they returned to the queen's palace the conversation went something like this. These ants were everywhere and needless to say our house did not sell. We ended up taking a buy out from Tom's company after 6 months.
Since there are no plans for us to move anytime soon, we're stuck using ant traps. Grants traps seem to work the best in case anyone else is having issues.