It just rained pretty heavily and now there are motherfucking ants in my motherfucking kitchen.

I gave it a thorough deep cleaning, all my pantry food is well stored, but the kids aren't super meticulous about it, so I guess there's probably some crumbs. I had borax around the edges of my pantry shelves after seeing a roach shortly after we moved in, but I guess it's deteriorated. I think I'm going to go pick up bait and caulk tomorrow, but do any of you have good methods (preferably cheap) to deal with these little assholes?