Expect Post Office Nightmare Today

If you want to get your holiday gifts or cards to relatives and loved ones by Christmas, today would be the day to head to your nearest post office, where it's certain to be the busiest day of the snail mail year. If you can't make it today, it'll cost you: "Priority mail can be sent Tuesday and express mail on Wednesday and still make it in time for the holiday." List of post offices in San Francisco. [Appeal]