Natural Gnat Catcher -- made from everyday kitchen ingredients

Yes, I know it is not food to eat but the gnats are  swarming so Barry mixed up a batch of Gnat Catcher using everyday kitchen ingredients! The smell of the vinegar attracts the gnats and the Dawn® breaks the surface tension of the vinegar-water traps them.
YES! It definitely works!

Grant Catcher 
1/3 cup apple  cider vinegar
2 teaspoon water
1 drop Dawn® dishwashing detergent

Mix cider vinegar and water in a shallow bowl, add a drop of Dawn®.