If you want. This weekend London is having an Open House, where many usually inaccessible buildings are opened to the public. As part of it, there's a charity night walk over Friday night, through 17 miles of London. The charity in question is Maggie's Centres, and I'm going to be participating, so I thought I should probably attempt to hit you up for some money. The link is here, and any money you can spare would be really appreciated.