A real estate agent walked through my house I was putting for sale. He examined the switch plates carefully. I asked why. He replied that a good craftsman lined up the slots in the top screw and bottom screw, and this was a "tell" that he'd done a good job.
Why not? There are companies dedicated to sprucing up houses for sale. They will even bake bread for you before inspections to give the place a "homey" smell.
