Summer brings sunshine, blooming flowers… and wasps.
I remember walking to my mailbox on a warm July afternoon, reaching inside, and freezing. A paper wasp was staring at me from the corner of the box, its antenna twitching, its wings ready. I slammed the door shut and ran back inside.
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For the next week, I approached my mailbox like it was a bomb disposal unit—slowly, carefully, with a stick to poke the mail out. I was terrified. I also had no idea what to do about it.

Then one day, I opened the box and found something unexpected: a lavender-scented dryer sheet, neatly folded in the back corner. Not on top of the mail. Not stuck to the door. Deliberately placed.
I pulled it out, confused. Did someone lose their laundry? Was this a prank? A secret code?
I asked my mail carrier the next day. She smiled and said, “I put that there. It keeps the wasps away.”

I was skeptical. Dryer sheets? Against wasps? How?
She explained that the strong scent of dryer sheets (especially those with linalool, a compound found in lavender) deters wasps and yellow jackets. They dislike the smell, so they avoid nesting in the mailbox.
She started placing dryer sheets in mailboxes that had wasp problems—and it worked. Other carriers did the same. Now it’s a little-known but widespread practice across the country.
If you’ve ever opened your mailbox and found a brightly colored dryer sheet tucked in the back, don’t toss it! That little square of fabric is actually a clever, chemical-free defense—placed there by your mail carrier to keep both you and them safe from stinging insects.