Take a glass and put a little water with drop of dishsoap in bottom...add your cider vinegar...just a spoonful. make a cone out of a paper plate, etc and put in the top, small opening into the glass...they will go in and not come out. If they land in the liquid, they will not be able to fly. Then just take outside and dump, refill til all gone.

Store bananas in fridge. Outside will turn black, but the fruit will stay good way longer than if you store them on the counter.