Flies can be a real nuisance, especially during the warmer months. However, there’s a simple, natural, and free method to keep them away from your home using just a plastic bag, water, and some coins. This method has been used for years as an effective fly repellent, and it’s easy to set up with items you likely already have at home.

How the Method Works

The water-filled plastic bag with coins creates reflections and distortions that confuse flies. Flies have compound eyes that are highly sensitive to light and movement. The combination of water and shiny coins in the bag creates reflections that disorient flies, making them stay away from the area.

What You’ll Need

• Clear plastic bags (like sandwich or freezer bags)

• Water

• A few shiny coins (pennies, nickels, or any small coins)

• String or twist ties (optional, for hanging)

Instructions

1. Prepare the Plastic Bags

1. Fill with Water: Fill each plastic bag about 3/4 full with water. The amount of water doesn’t have to be exact, but it should be enough to create a bulging bag that can reflect light.

2. Add Coins: Drop 3-5 shiny coins into each water-filled bag. The coins will act as additional reflective surfaces, enhancing the effect of the light refraction.

2. Seal the Bags

1. Seal Tightly: Seal the bags tightly to prevent water from leaking out. You can use the built-in seal if the bag has one, or you can tie it securely with a twist tie or string.

3. Hang or Place the Bags

1. Position the Bags: Hang the bags near doorways, windows, patios, or any area where flies tend to gather. You can use string to hang the bags from hooks, nails, or even tree branches. If hanging isn’t an option, simply place the bags on a flat surface where they can catch the light.

4. Enjoy a Fly-Free Zone

1. Observe the Results: Once the bags are in place, you should notice a significant decrease in the number of flies around your home. The reflective light and movement should keep them away.

Tips for Best Results

• Use Multiple Bags: For larger areas or high-traffic zones, use multiple bags to ensure effective coverage.

• Replace as Needed: Over time, the water may become cloudy or the coins less shiny. Replace the water and coins as needed to maintain the effectiveness of the repellent.

• Position in Direct Sunlight: For maximum effect, place the bags in areas where they will catch direct sunlight, as this increases the light refraction that confuses the flies.

Why This Works

Flies rely heavily on their vision, and the reflections created by the water and coins disrupt their visual perception, making them avoid the area. This method is especially popular in rural and outdoor settings where flies can be particularly bothersome.

Conclusion

Using a simple combination of water, plastic bags, and coins is an easy, natural, and cost-effective way to keep flies away from your home. This method doesn’t involve any chemicals or toxins, making it a safe choice for households with children and pets. Give it a try, and enjoy a fly-free environment!