Okay...so I had this problem...I had a bunch of fruit flies flying around my kitchen. I think it is because I left a few bananas out to get a little too ripe. These flies were driving me crazy so I thought that I would try an experiment. I filled a little shot glass sized cup up with apple cider vinegar. I heard that you could catch more flies with honey than vinegar but I know that the honey would not quite kill the flies so I left the cup out for a few days and to my astonishment I found a bunch of dead flies at the bottom of the cup. I am so happy... no more flies.
Click on the pictures to see a better view of my dead flies... ;o)