Regulate your electric use.
When not in use, unplug electric appliances.
Apparently, unplugging the TV instead of just switching it off can save a lot of electricity!
When not in a room, switch off the lights and the fan.
Use a programmable thermostat to control your A/C and heater usage.
If that’s too much, at least know what each appliance uses and unplug a few of them.