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Remove or disconnect unnecessary light fixtures.

Replace incandescent light bulbs with LEDs.

Use shades and blinds to control direct sun through windows in both summer and winter to prevent or encourage heat gain.

Maximize daylighting. After all, sunlight is free! Open or close blinds to make the best use of natural daylight and take advantage of skylights or other natural daylight sources to reduce lighting during daytime hours.

Implement a regular lighting maintenance program.

Lower light levels, where appropriate, such as around computer monitors.

Install timers or photocells on outside lights.

Remove unnecessary lamps (de-lamp) in overlit areas. Check your light levels against standards from the Illuminating Engineering Society (IES) to see if you have areas that are over- or under-lit.

Turn off lights when not in use or when natural daylight is sufficient. This can reduce lighting expenses by 10% – 40%.

Use task lighting where feasible.

Install LED exit signs.

Replace or retrofit non-energy efficient light fixtures.

Install “occupant sensors” to automatically turn lights off and on.

Install faucet aerators and efficient showerheads.

Use hot water wisely.

Insulate hot water holding tanks and hot & cold water pipes.

Set your water heater at the lowest required temperature.

Find and fix water leaks.