CINNAMON: ants don’t like the smell and they’ll avoid crossing it. I put this under my cats (raised ) bowls and it works well.
VINEGAR: mix with water (1/2 vinegar, 1/2 water) This is very useful to repel ants on counters
BAY LEAVES: works well to repel ants and cockroaches. Leave in drawers, cabinets, and near entryways. Ants don’t like the smell and it’s a deterent.
DIATOMACEOUS EARTH: works well on all types crawling insects. It’s abrasive to exoskeletons and causes dehydration, followed by death. (Sorry insects, may it be a painless way to go.)