If your work is within walking/running/cycling distance I think those options essentially always win over anything else in densely populated areas. I recently

If your work is within walking/running/cycling distance I think those options essentially always win over anything else in densely populated areas. I recently spent half a year in central London, 6 km from home to work. I would run or longboard it in < 40 minutes one way, taking the tube or bus took > 60 minutes door-to-door, so even including a quick shower running was faster. If you count in the money saved on not taking the tube, not needing a gym membership, and the time saved by not having to do any workouts after you come home from work, it's a big win. I did have to limit myself to 3 days running a week (2 days longboarding), or my knees started complaining. Also, London: fix your goddamned pavements, they are un-bloody-skateboardable. We have invented concrete and asphalt, you don't need to use cobblestones everywhere.