These money-saving heroes have proven to be a lifeline in hard times for the millions of people who are currently battling to make ends meet.

As a result of Kwajo Tweneboa’s widely shared tweets regarding the neglectful state of his family’s home, Clarion—the largest social housing provider in Europe—finally made renovations. It turned out to be the first of many victories for the 23-year-old, who has emerged as the voice for residents of social housing, against careless landlords. He is putting pressure on the UK government to fund council homes because he thinks that everyone deserves adequate accommodation.

Jack Monroe has gained prominence as a leading advocate against poverty because her blog post on feeding her son on £10 per week went viral. She has authored books, testified in front of parliamentary committees, and is currently developing a new pricing index to monitor the skyrocketing cost of staple items. Visit her website to see her ongoing collection of low-energy, 15-minute one-pan dinners, including upside-down fish pie for 97p.

He works in IT by day and hunts down online thieves of people’s money by night as an anonymous vigilante. Cybercrime has increased dramatically in recent months as con artists pretend to be energy firms providing better deals while taking advantage of the rising expense of living. To see Jim Browning uncover common criminal strategies and turn the tables on them, four million people now subscribe to his YouTube channel.

Martin Lewis initially looked for low-cost credit card offers. The initial money-saving guru has subsequently evolved into the protector of the people, finding loopholes in legislation and successfully suing Facebook to force them to deal with fraudulent advertisements. The Joe Wicks of the cost of living problem, anyone? His efforts to sound the alarm and assist those having financial difficulties this year have made him a daily feature on our televisions.

The “coupon queen” of the UK, mother-of-four Holly Smith, uses coupons to save $3,500 annually. The four million members of her Extreme Couponing and Bargains UK Facebook group are privy to her tricks. Her website currently receives 1.4 million daily searches, a significant increase from 100,000 at this time last year as a result of the rising cost of living. She thinks having autism makes it easier for her to figure out how to save money.