If unable to switch off the entire computer, turn off the monitor and printer. If feasible, use laptop computers where possible, as they consume 90 percent less energy than desktop computers. Ink-jet printers also consume 90 percent less energy than laser printers consider using them wherever possible.
Lighting Turn off non-essential and decorative lighting, especially in unoccupied areas.
Replace flickering, dim and burned-out lamps. Color-code or mark light switches and circuit breakers that can be turned off when not needed. Use task lighting to directly illuminate work areas. Lower the height of light fixtures if possible to increase usable light. Replace burned out lamps with lower wattage lamps or energy-saving lamps wherever possible.