How to Keep Flies Out of Your House With Pennies

Trying to kill a pesky housefly is a time-consuming and annoying process. Flyswatters and rolled-up newspapers are effective — if you manage to find flies sitting still long enough — but allow you to kill only one bug at a time. Pesticides will kill large amounts of flies, but they are often foul-smelling and contain caustic chemicals. Preventing the flies from entering your home in the first place is the best solution — and one possible preventative technique involves the use of the humble penny.

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A penny resembles a spider when using this method.

Step 1

Fill a zipper-style plastic bag halfway with water. The theory is that when a fly heads toward the water-filled bag, it sees a large reflection that scares it away.

Step 2

Drop a penny into the bottom of the bag. To a fly, the penny is believed to resemble a spider in its web. Since spiders are a predator of flies, the pest is deterred from going past the penny and water-filled bag.

Step 3

Place a thumbtack into the plastic bag above the zipper-style seam. Attach it above a doorway by pushing the thumbtack into the door frame. Another idea is to make several to put above the windows of your home.


Chelsea Fitzgerald

Chelsea Fitzgerald covers topics related to family, health, green living and travel. Before her writing career, she worked in the medical field for 21 years. Fitzgerald studied education at the University of Arkansas and University of Memphis.