Still image from "How to Drive the Mailster Safely" (28.96). With the holiday season upon us, we rely on the U.S. Postal Service to send Christmas cards and deliver last-minute gifts. We’re familiar with the sight of a small mail truck traveling the streets of suburbia, but how did we get there? Let’s travel back … Continue reading How to Drive the Mailster: A Time-Traveling Lesson in Postal Technology