A shopper has urged others to invest in a bargain £8.50 item that has meant she has “hardly” needed to put on the heating this autumn. Inspired by the advice of money expert Martin Lewis, reporter Emma Gill, looked for ways to stay warm for less.

Writing for the Manchester Evening News she explained how Martin recommended people “heat the human, not the home” as one simple way to keep energy costs low.

Therefore, Emma invested in a wearable hot water bottle, currently reduced at one…