The way I get rid of ants is to go to the hardware store and buy a powder to mix with sugar to kill them. Borax.
Also, ants leave trails, and ammonia (like windex) will erase these trails so other ants won't follow them.
Of course you know the obvious: pick up and dispose the ants you can see, and don't leave any food crumbs out.
If you are not adverse to using a spray like Raid, ant & roach spray (if you have no pets & it isn't on surfaces you use for food) that is an option.
I have read that ants don't like mint, but never tried to see if this is effective.
Hope the ants are gone soon. Once I brought in firewood in the winter and when it thawed out, swarms of army ants poured out and I did the fastest ant stomping dance I have ever done in my life.