(Residential) Air-dry your hair. Blow dryers are some of the most energy-intensive appliances you are likely to use.
(Residential) Use handheld razors and toothbrushes instead of electric ones.
(Residential) Keep your refrigerator filled. It's actually more efficient, and wastes less energy on cooling dead air.
(Residential) Minimize the amount of time that the refrigerator door is open.
(Residential) Make sure to only heat as much hot water as you are going to use when cooking.
(Residential) Cool any cooked leftovers to room temperature before placing them in the fridge.
(Office & Residential) Connect your appliances and electronics to a power strip and turn them off when not in use. Flipped off power strips waste no phantom energy. 5% of domestic energy consumption comes from so-called "vampire power."
(Office & Residential) Turn off and unplug everything when you are gone for weekends and breaks.
How much you use in the bathroom
Hair-dryer: 1875 Watts
Hair straightener: 35-75 Watts
Curling Iron: 100 Watts
Electric razor: 50 Watts
Electric toothbrush: 7 Watts
How much you use in the kitchen
Electric Oven: 1500-2400 watts
Electric Stove: 1000-1500 watts
Coffee-maker: 900-1200 watts
Toaster: 800-1400 watts
Microwave: 750-1100 watts
Blender: 600 watts
How much you use in the living room
Air Conditioning: 2000 watts
Standard (incandescent) light bulb: 60-100 watts
Compact fluorescent light bulb: 13-20 watts
Stereo: 20 watts
Cell phone charger: 1 watt
Laptop charger: 60 Watt
Phone: 5 watts
Printer: 100 watts
Fan: 50 watts
Iron: 1000-1800
TV: 40-150 Watt (3-5 when off but still plugged in)
