It's hard to imagine being able to retire at 40, but some lucky folk out there have managed to make this a reality. Channel 4 host Anna Richardson meets people who have found ingenious or unusual ways to retire early, including friends who discovered how to buy property for less, a man who has made his fortune sending potatoes through the post; and a family who insist on only spending money two days a week. Journalist Sophie Morgan also talks to trendspotters who are trailblazing new methods of saving money including how to get restaurant quality meals for a fraction of the price.