d. Use cold water when washing your clothes
Total savings that would not cost you a dime is when you decide to wash your clothes without using water heaters. Washing machines consume most of their energy heating the water that will be used.
e. Refrain from using your microwave to thaw frozen meat
If you practice removing frozen meat from the fridge and thawing it in your microwave, you are wasting a lot of money. In order for you to save, remove frozen meat hours before you plan to cook it. You can immerse it in warm water do speed up the process.
f.  Do not put hot or warm food on the fridge
Let them cool down first. The fridge will consume a lot of power in order to cool down these hot foods where in fact you can always avoid them.
g. Do not use second fridge if necessary
If you can squeeze all your "fridgeable" stuff inside one fridge, do so. A second fridge doubles your energy consumption.
h. Ensure that your house is sealed
If you are using heating system or air conditioning to warm up or cool down your home, make sure you that your house is completely sealed. This will ensure that the devices are used efficiently. Leaks will keep the heat from your home thus will push the heating system for work more and consume more energy. This also goes with air conditioning system.
i. Lower down the thermostat by as much as 7 degrees centigrade while not at home or while sleeping