Fruit Fly Eliminator

We have a long summer here, and so this may be a little late for you- but this time of year we always get fruit flies in the house.  They seem to come in with the garden produce and then there's just bunches of them.  I finally found online a solution that really works to get red of them . . . and it's so easy:
Just get a bowl or jar and pour in a glug of apple cider vinegar.  Add a few drops of dishwashing soap and then add water.  Then just leave it out near where those pesky flies congregate.  You'll soon have lots of tiny dead flies in there.  They are attracted to the cider vinegar, then get trapped by the soap and water.  It really works.  Ours are completely gone.  I just thought I'd share in case you have the same problem.