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.
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Portman was due to receive the award in Israel in June and said that her reasons for skipping the ceremony were solely due to Mr Netanyahu.
Analysis of Department for Work and Pensions data found the average man receives £153.86 a week and the average woman receives £125.98.
The country says it is making the move to shift its national focus and improve its economy.