I love the post office, here and in Britain. Sending a letter hundreds of miles away in 48 hours for 50 cents...amazing. Just found this story- "While working for her degree at Glasgow School of Art Harriet Russell decided to find out exactly what lengths the men and women of the Royal Mail were willing to go to to ensure the safe delivery of her missives." Instead of addreses the illustrator made puzzles for the mailcarriers. And they were up to it.