About 1 quart of water
1–2 tsp liquid soap
20–30 drops peppermint oil
Fill a quart jar with water.
Add 1-2 teaspoons of a liquid soap, like this one. Any sort of liquid dishwashing soap would also work, though.
Add 20-30 drops of an essential oil, I chose peppermint because most bugs don’t like the menthol in peppermint, specifically ants.
Shake it up a bit, and you’re good to go!
Be sure to test the spray in a small area before using it liberally.