To start the day I would sort the mail into slots in the order that it would be delivered. I would put the mail in trays in the work vehicle to be delivered. Drive to the area in which I was delivering, park the vehicle, bag the mail, and deliver by foot. I did not realize how hard of a job it was until doing it. My body was not in shape for walking and carrying such a heavy mail bag. I only lasted a short time but now, understand my limits.