If you're traveling from somewhere exotic. Like outside W1. It might be nice to offer someone a lift, or try and cadge one, or just arrange to travel with someone else. This would be a good place to do that.

Funky urban types can get their walking/rollerblading/supermarket-trolley-racing instructions from walkit.com by entering their starting point in this handy widget OK, so I couldn't get the widget to work immediately so gave up :( Just go to http://www.walkit.com/ enter the post code where you're starting from and WC1R 4RL as your destination.