Or, go waaaaaay old school, and draw a line of chalk, yes chalk, around where they are entering. Ants refuse to walk on chalk. Something about how it dries up there legs and they fall off. Worked for me. Trap one ant and draw a circle around it with chalk, grab a beer, and watch him frantically try and escape. Its pretty funny.
Fuck, im a loser....
Holla
Lil ceez