Wheels: Mail trucks

Most people don’t give the U.S. Postal Service a second thought unless they’re waiting for a check to arrive. The USPS is one of those entities that we take for granted — it’s a convenience, like a grocery store with full shelves or any other of the many benefits we enjoy, living in a prosperous society.

But when you think about it, we can scribble a name and address on an envelope, stick on a stamp (that we don’t even have to lick anymore), and for pocket change, that piece of mail will go clear across the country in short order and arrive safely at the door of its intended recipient, all for less than it cost to drive to the post office.