- 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.
- 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.
- 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.
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