Three-quarters of British households are wasting £68 million a year by overfilling the kettle, according to a new report.
The study by the Energy Saving Trust Foundation found that many small changes to the way we use water could result in big savings on energy bills.
Some of the areas where the biggest savings could be made are by reducing time spent in the shower and by using a modern dishwasher rather than washing by hand.
More top news
Rain will push into the northwest, turning heavy and persistent in places
Thousands of dangerous appliances are still in use across the UK despite years of warnings about the dangers.
The US Navy says 10 sailors are missing and five are injured after the USS John S. McCain collided with a merchant ship near Singapore