I may have been the last to learn this, but I just found out that the confirmation site for the United States Postal Service allows you to request status email to three names when you put in your confirmation number. I sent something priority mail to Nevada on Monday, and I just received the notice that it was delivered this morning.
Day: September 15, 2004
Above the Eye of Hurricane Ivan
In this photo from Astronomy Picture of the Day, Hurrican Ivan looks almost malevolent. via brisingamen.