I'm clearly not the only person who spends a lot of time looking at computer screens and takes the trouble to personalize them with some sort of image from outside the computer domain. I usually find myself selecting some natural scene, like this one that's current as of today. Based on an unsystematic over-shoulder survey at offices and conferences, it seems that family members are also popular. Though a small gesture, the result seems more comforting than one might expect, perhaps as a reminder of being anchored into the physical world. Even when most of the image is obscured by an email client.