A band called Postal Service (so named because the members lived in different cities and mailed each other snippets of music as part of their songwriting process) recently received a cease-and-desist letter from, you guessed it, the U.S. Postal Service. It could have been just one more story of overaggressive copyright enforcement in a situation in which no one was losing money or getting hurt, but instead, the band and the mail carriers worked out a deal. As a result, the band gets to keep its name and its stock of albums, and the U.S. Postal Service has a brand new way to promote itself.