Prince Charles wants British families to take more showers instead of baths to help save the planet.

“Snub the tub. If everybody in a four-person family replaced one bath a week with a five-minute shower, you could save between £5 and £15 per year off your energy bill” he says on his website.His request comes as part of his green campaign START launched last month. START is The Prince of Wales’s new initiative to show what a more energy efficient, cleaner and healthier future could look like and how we can all make a start.

This week the Prince of Wales embarked on a five-day tour of Britain showcasing the best of the nation’s sustainable projects as part of the START tour. Travelling on the Royal Train, which is powered by sustainable bio-fuel, of course.