Martin Lewis highlights 'really good way' woman saved £600 – 'many people love it'

Savers start by setting aside £1 on the first week, then £2 on the second week, then £3 on the third week, and so on.

The challenge sees savers setting aside what they saved the week before while adding another pound a week later. After a year of doing this, savers could end up with a ­£1,378 savings pot.

On the challenge, Mat Megens, CEO and founder of HyperJar previously said: “Sometimes, healthy competition can be a great method of motivating yourself – especially if you do it with a friend or family member.”

Alternatively, Mr Megens continued: “You can also try the pound-a-day challenge, or create your own game.”