I turn off lights when its unnecessary even for a second. I use bulbs for every location in right type and dimensions.
Energy saving bulbs uses energy less than %80 according to normal bulbs. If every family make this change with 3 bulbs in their home, CO2 release decreases by 250 million kg. Or 75 kg. CO2 can be saved.
Turning off the electrical devices when you are not using them, saves tons of CO2 for a year. Energy consumption for stand by chips on electronic devices to making them ready to use, is about %5 of total energy used in a home and it means 18 million tons of CO2 release in a year.
Its needed too much energy for water heating. You can save nearly 250 kg. CO2 by using lukeworm water for washing your clothes.
Isolating ceilings, walls and not closing the radiators decreases %25 of your heating expenditure and by the way you can save 1000 kg. CO2 for a year.
You can make important savings by using efficent household appliance or using them efficiently.