Last year, I fought what felt like an epic battle with little black ants. By the end of the summer, my Simple Solution to the Big Little Ant Problem was Vinegar.
I remember because my children protested loudly. Surprisingly, they preferred Ants to the smell of vinegar. I used an empty Windex bottle filled with white vinegar. Sprayed the door where the ants come in often throughout the day. This seemed to cut down on the number of ants marching in.
This year, I will add whole cloves to my attack. Apparently, ants don't like the smell of cloves either. And I will just pour the vinegar outside the door, instead of inside. Vinegar, outside and cloves inside.
I hope it works!