Octopus Energy is recommending a ' 4pm rule ' to UK households as the weather turns colder and utility bills remain high. The 'rule' has made headlines previously for also being recommended by Money Saving Expert (MSE) founder Martin Lewis , who says it can help keep heat in and potentially lower bills. He first talked about it on ITV 's The Martin Lewis Money Show a few years back, but with the cost of living crisis still keeping a tight grip on UK homeowners, it’s still relevant. His team of