I stopped by the Post Office to pick up four post cards for this coming weekend's Full Moon Kerr Lake Loop (FMKLL). I was charged 31 cents for each card. The "stamp" in the upper right corner on each postcard notes "USA28". No extra 3 cent stamp is affixed.
I hope the cards get delivered, and not "binned" for having inadequate postage.
Also, if the Postal Service can't tell the difference between 28 cents and 31 cents ... maybe that explains why it is always losing so much money.