David Horvitz - Everything that can happen in a day

Almost every day during 2009 David Horvitz put up an idea on a tumblr blog. Born out of his curiosity of what was possible during a day he played with the notion that nothing will happen unless you first start something. At the end of last year a selection of his 'tumblr instructions' were published by mbp. Below is one of my favourite posts, why not make yourself a sign this weekend (feel free to change the destination).