I have to say that I have never experienced this in my life, but it does happen. Some people are finding dryer sheets in their mailbox and they don't know why.
It is a problem when one of the people that is supposed to be delivering them, decides to stop doing so daily, and that has happened recently in the Magic Valley.
To answer my question above, evidently, very difficult! However, maybe it's a sign of the times. Do you hate mailing things? Or what about actually talking to people on the phone?