We are having a bout with little itty bitty ants. For some reason, they are hanging out in our upstairs bathroom. With no food source, I'm hoping they will go away on their own. If that's not the case, I will take action. I'm researching non-toxic remedies (we have Golden Retrievers who like to lick, sniff and eat just about anything). One that I came across was cornmeal. Apparently the ants will eat the cornmeal and then go for a drink of water. The cornmeal expands in their little ant bellies and boom – they blow up and are no longer a problem.