In case that your computer addiction have made you forget how humans look like, you could use three minutes watching people from 1 to 100 years of age, in a lovely video made by Lenka Clayton and James Price (via Kellypuffs).

If that hasn't been an overexposure to human looks, the humancalendar.com is and the humanclock.com are also very cool (and the later is a nice TV-Wii-powered screensaver).