I will go one better. Why do so many people fail to put their STREET ADDRESS number on their doorway (or somewhere else that is highly visible)? I had so much trouble locating someone’s house to pick up one of my children who had been dropped off by someone else. There was snow on the ground covering up the one place that had an address, some small spot in the front yard.
Chas v’Sholom lo aleinu that they should ever need Hatzalah. Precious time will be lost as people search in vain for an address that is not readily visible. PLEASE put your house number (the numerals themselves, not a calligraphically-written script of the words)in an area that is well lit and easy to spot.