Hippo in the picture

Pete, Nicola, Lola, 9, and Nell, 6, spent three happy months during summer of 2007 travelling around Britain. Now we’re home, but the travel bug is still there. Join us for the occasional sightseeing plus tips on how to shrink your carbon footprint. This post is from Nicola

This pic is of Nell and Lola over-excitedly finding a model toilet at Camden Green Fair covered in tips to fill it with a Hippo. It says: "If it's yellow, let it mellow. If it's brown, flush it down." It also says that a Hippo can save 5,000 litres of water per person each year.

I love this pic because it reveals Nell's true feelings about our rarely flush policy.