Each day going to work I have a journey that involves a mix of walking and taking trains, and there is one thing that I have noticed that appears to be on the rise in popularity and to me it does seem like a much better alternative to walking or cycling.
Scooters for the commuters (made up that name, but it has a nice ring to it).
They are neat looking, fold-able push scooters, not like those ones you see now-a-days at skate parks that the kids are riding, but one more suitable for the urban terrain. They have large robust wheels and will help you get from A to B in no time at all, quicker, easier, and more fun than walking!
I haven't yet invested in one because I commute with other people. But these things do look fun and I might look into getting one in the future.
Here is a link to where you can buy some: www.amazon.co.uk - some of them look childish, but amazon doesn't have great refining options so look around!