The common advice (in Denmark) is to buy energy efficient electrical appliances. Fridges, washing machines, dishwashers, and led lights are labelled[1] so consumers can decide for themselves.
School kids are taught (well, at least I was) small habits such as boiling just the amount of water that you need, cooking with the lid on, turning off the oven 5 minutes before the meal is done, etc.
These energy saving habits are motivated by taxes on energy consumption.
The average household in Denmark use 4.4kWh/day per person (1600kWh a year) and the current recommendation is to be aiming at 1000kWh/year[2].
I guess it's all relative! I'm not home much of the day, live in a newish condo with LED lights, and heat and cooking use natural gas. 8 KWh feels like a lot to me as it's enough electricity to power an oven for several hours each day.