Designers need to measure success by the memorable moments their work creates. My family had Slide Show Night when I was growing up. Not every Saturday, but a whole bunch of Saturdays. Either my sister or I would be in charge of setting up the projector, the screen, and loading the carousel. During the show, there’d be a few landscapes or skylines taken during vacations, but almost all the shots were up close. Like most dads, mine wasn’t a professional photographer, but he did a good job of capturing memory triggers: faces, gestures, and decorations.