It can be difficult to maintain awareness of posture during many hours at the computer.  MSDN Channel 9 last week featured a .NET Gadgeteer device, the Accelerometer Posture Sensor/Regulator, that could prevent the malady that afflicts numerous technology workers.  This device alerts the wearer when posture is not upright in a position conducive to a healthy neck and spine.  There are two versions of the device, one that flashes a LED when the user slumps, and another that turns on a buzzer that will either maintain good posture or make the wearer deaf.