1. Replacing 15 50W globes with LED lights could reduce a household power bill by up to $250 a year.
2. Shoppers should look at star ratings when you’re buying a new washing machine, dryer or dishwasher. Choosing the right one could save $30 to $60 a year.
3. Blocking up draughts and closing off parts of the house that aren’t in constant use can make it easier and cheaper to keep a home cool. Plus every degree below 25 degrees that an air conditioner is running to increases cooling costs by 10 per cent.