All this talk of postmen's reminded me of this really sad image,
"One morning, on one of the canals in the exquisite Dutch city of Delft, home of Vermeer, I watched a TNT van crawling along. Every so often the driver would stop, get out, deliver a package to one of the handsome brick houses, and move on. A few minutes later, a second postman followed in his wake, on foot, in the blue uniform of Sandd, trudging along with his heavy sack."