Fredd-inflation, W / MoneySuperMarket
When the old £10 note was headed for retirement W and MoneySupermarket analysed price inflation since it was introduced in 2000. Using smart thinking, desk research and zero budget, we provoked a national outcry and prompted a price cut from one of the world's biggest brands.

The biggest riser was the humble Freddo chocolate bar, which had skyrocketed in price by shocking 200%. Media and public went nuts about the findings. Even Jeremy Corbyn pledged to look into it. Within weeks Cadbury acknowledged the outcry and announced it was reducing Freddo from 30p to 25p.