Tired of flies buzzing around during outdoor time? No need to reach for chemical sprays like Raid, which can harm your family and aren't budget-friendly.
Discover this ultra-effective, non-toxic fly repellent using just a zip-top bag, yellow coins, and water. Here's how:

- Large zip-top bag
- Water
- Yellow coins or pieces

1. Fill the bag halfway or fully with water.
2. Add a few yellow coins inside.
3. Seal the bag securely.
4. Hang it high in areas prone to flies, like patios or near animals.

A farmer friend, Louis, shared this trick during my family's visit to his farm last summer. His open barn housed donkeys, horses, goats, and more—yet not a single fly was in sight.
Intrigued, I asked his secret. He pointed to large zip bags filled with water and yellow pieces hanging above the animals.
Louis explained that this simple setup acts as a natural fly deterrent. Flies' compound eyes, made of hundreds of tiny facets, are overwhelmed by the light reflections from the water bag, keeping them at bay.

The yellow coin enhances effectiveness—local farmers swear by it, though the exact reason isn't fully known. Louis hangs multiple bags since they're inexpensive and cover large areas effectively. He even uses them on his terrace, fly-free every time.

This method is simple, quick, and highly effective. Enjoy fly-free meals outdoors!
I've tested it at home with great success—flies vanish. Ideal for houseflies, but for mosquitoes or ticks, try other natural remedies.
For more options, build a fly trap. Tutorial here.