A woman has explained how she slashed her energy bill from £90 to £12 thanks to advice shared by Martin Lewis.
The MoneySavingExpert founder has previously tried to explain whether you’re better off leaving your heating on all day, or only turning it on when you need it.
Energy experts are often divided over the right answer. But according to the Energy Saving Trust, the idea that it is cheaper to leave the heating on low all day is a myth.
