When the kids where young, my wife had a paper route. She would pick up the papers and deliver 20 of them from her van. Then she would give me the other 80 that I would deliver from my bike. I had two milk crates fastened together so I could quickly attach them to a rear rack. Sundays were rough. I would have two full crates and two full bags. During the week I would do that every morning before going to my real job. For me the bike made the task very enjoyable.