a lot of stuff at UPS gets lost in transit with no known senders because the label comes off during handeling and they have no documents inside
best to always stick at least two on and if its forecast rain put one of them in a plastic wallet as most trailers leak
if your box is near a leak or the floor a lot of home printed labels get wet and then get unreadable if its not protected
Never put derogatory stuff on boxes like don't break me you idiots, dont wombles drop me etc etc, seen people take offence to it and then purposely damage stuff
something simple and funny effective on a box is always welcomed
wrap a box well, if its humid / wet a lot of tape often loses its grip, lift a box and at least 10 in every 1000 drop their contents all over the floor, if it rolls and goes of the deck there is wombles all chance its ever going to get back in the box
before a box gets to you their has been about 50 different hands all over it and a lot of rolling belts and sh1t if it pinches a label its got nowhere to go
UPS have a few people employed at every branch just to try and track where these random boxes might have come from and sorting out getting them where they should be, they even have a special alarmed and locked room for all this lost in transit stuff