Fruit flies swarming your kitchen and annoying you? Do this: take a small ramekin or bowl and fill with about 1/4" of apple cider vinegar. Cover the bowl tightly with plastic wrap. Take a tooth pick and gently poke holes in the plastic wrap all over the top of the bowl. Careful not to make any one hole too big, keep them small. You're all set. Fruit flies will find their way to the vinegar through the holes in the plastic wrap. However, they are unable to get out through those same holes. Try it. I keep mine on the counter tops for weeks at a time.