I'd love to cycle to work, the only problem is it's a 160 mile round trip, so it's not too sustainable. I've thought about cycling the journey from my house to the train station but then I've got the additional problem of dealing with a bike on a busy train (two trains really), storing it at the office (small elevator) so I keep getting the bus. If I ever work closer to home I think I will, everyone I know that does is in much better shape than me and generally a bit more awake at 9am.