Easy Tips To Cut Your Bills It is estimated that 23% of energy bills are spent on wasted energy!!! In this module, you’ll learn how phone chargers, dirty dishes and tumble driers might be adding to your energy bills. We’ll also show you how simply changing habits can save you lots! Test your learning!Using the ‘Eco’ setting on your dishwasher means that your dishes won’t be cleaned properly. True False Using a dishwasher can be more cost-effective than hand-washing dishes. True False Which of the following can help reduce your bill when compared to a tumble dryer? Tumble Dryer balls Air Drying Heated Clothes rails All of the above