If a Dryer Sheet Shows Up in Your Mailbox, Here’s What It’s Trying to Tell You

If a tenant is doing this repeatedly, it often means:

She’s had a wasp nest there before

She’s trying to protect the mail carrier

She’s preventing bugs from crawling into her mail

She’s had pest issues in the past and is being proactive

Other Possible Reasons
While pest control is the main reason, there are a few secondary ones:

Odor control: Dryer sheets keep the mailbox smelling fresh, especially in humid areas.

Rodent deterrent: Some people believe mice dislike the smell.

Static reduction: In dry climates, sheets can reduce static cling on envelopes.