I guess I get spoiled.
Around where I live, there is NO excuse for landing at the wrong airport. Almost all have notations like this:
http://goo.gl/maps/Sc9SR
http://goo.gl/maps/RD06j
http://goo.gl/maps/gBkQk
http://goo.gl/maps/ltgjn
These are all clearly legible from pattern altitude.
Thanks to The 99s, who send volunteers out to paint them.