I just dropped off IRS and state tax forms at the Coeur d'Alene Post Office. They were relatively simple forms in two different manilla envelopes -- $1.05 postage each. Then, the helpful post officer clerk asked if I wanted to mail the envelopes with certified postage. I didn't know what that meant. So I asked. She responded: "Then, you'll have proof that you mailed the envelopes." I thought to myself that the first-class mailing should be some sort of guarantee that the envelopes were going to get to Boise and Kansas City, right? I might have been OK with paying $2.85 total for the certification. But the cost was $2.85 apiece. Now I'm wondering what's the percentage of mailings to the IRS and Idaho Tax Commission that go missing because they weren't certified.

Question: When did you last lose something in the mail?