Lumen, a small SEO consultancy based in Cardiff, first tried out the four-day week. The result: happier employees, increased productivity and zero turnover. On the strength of this success, the company run by Aled Nelmes decided to go one step further and adopt a 32-hour week, with no constraints on days or hours. Each employee is now free to organise his or her own working hours, as long as targets are met.

Praise be to Kier!