good choices.
i used a series of traps and lined a couple door edges with ant out to get rid of the things. ants usually travel along a familiar path once establishing a route to what they want. the random ones you see are searching for new sources.
once you know the path it's the same as trapping / hunting anything else, just micro lol.
we had a bad infestation once where i lived. had a front door step made of concrete. the ants established under there, and worked in to the house. then the wasps moved in and cleared them out, and tried to work up the side of the house under the siding. we sealed the step back up with concrete, and they dug through it 3 times. eventually we won though.