In the Kitchen:
Use appropriate size pots and pans for your heating elements.
Whenever possible use a lid to retain heat.
Whenever possible use a pressure cooker, a slow electric cooker and electric coffee makers; these devices help to diminsh energy consumption.
Do not put hot or warm dishes into your refrigerator; in addition your refrigerator should be at least 5 cm from walls and never place a refigerator near a heat source such as an oven or stove.
Always try to purchase energy efficient appliances which are environmentally friendly.