This is a problem for me sometimes. I often find packages in my mailbox and cannot imagine what they are until I open them. Once I came home to find a large box at my doorstep which I thought was a kit and some supplies that I had ordered. Overjoyed, I struggled to get it through the door and cut it open only to discover that the box was full of what-nots and Christmas items. Horrified, it dawned on me that I had not checked the address on the box and sure enough, it was intended for my neighbor, who just happened to be a police officer.