Ways to get fit at your desk:
1. Do Squats before you sit
2. March in place while you sit at your desk for 1 minute. Do this several times through out the day
3. Try the portable pedal bike "deskercise" or the Desk treadmill that will fit under your desk
4. Bring both arms up and down. Do that motion for 1 minute
5. On your lunch or break, take a brief walk, up & down the stairs. Walk in the parking lot, etc.