Uh-yup, I’m just another one of those aging baby boomers and my eyes ain’t what they used to be. Of course, I blame my failing eyesight on my son and daughter. Each time they have given me a new grandchild, (I have four) my eyes have taken a dive. I didn’t have to wear glasses before the first one was born, now I can’t find my way around the house without the specs. I guess I'm descending into geezerhood.
So I’m out looking for this house a few weeks ago and after driving by three times, burning up expensive gas--I still can’t find the address I was given. One house had three numbers nailed to a tree but it was a neighborhood with four-number addresses and next two houses had no numbers visible on the entry. By looking at the addresses across the street, I made a deduction at which house I had my appointment. When I pulled up to the house I finally saw the address plaque under the bushes next to the driveway. The numbers were about 2 inches high on a rusted black background that blended well into the shadows and while I might be due for a new prescription for glasses, it was mighty hard to see that plaque from the street in daylight.

Another thing that I see a lot is the house numbers that have been painted over with the siding color. Once the sun goes down, they just blend into the wall and are invisible.
1351.32 STREET NUMBERS.
Every dwelling structure shall have the correct street number of such dwelling prominently displayed so that it is clearly visible at all times from the street in front of the property. The numbers shall be numerals, not in script, and they must be at least three (3) inches high and in contrasting colors. Such numbers shall be placed in close proximity to the main front entrance to the building. (Cleveland Heights OH Ord. 67-1971)
