Instead of taking the lift, I'm running all the way up Tower 42, one of the tallest buildings in the whole of London. (If you've never seen it, it's the same height as the BT Tower)

• Distance: 920 steps, 183 metres

More info here http://tinyurl.com/verticalrush2011

It's going to be the most painful climb of my life, but all of this is nothing compared to the work done every day by the wonderful charity Shelter. Whose aim it is to alleviate the distress caused by homelessness and bad housing.

Every two minutes, someone faces losing their home.

Please give generously.

Thank you. x