Dress appropriately for the seasons and the comfort level of your work area. Keep a sweater in your office instead of adjusting the thermostat.
If you use a building after-hours or on weekends, do not expect the heating/cooling systems to be in full operation.
Use flat-screen LCD monitors rather than CRT monitors. They use less energy.
Offices with dual light controls are asked to turn half the lights off.
When leaving for lunch or an appointment, turn off lights and any other small appliances in individual offices.
Implement paper reducing strategies such as double sided printing as a default.
Use e-mail instead of sending memos and faxing documents.
Use central departmental coffee makers and refrigerators instead of personal units.
Do not use electrical space heaters. They can overload circuits; they are a fire hazard; and they are "energy hogs" (one electric space heater uses as much electricity as 45 fluorescent light fixtures).