But the best part, of course, is that while you're watching YouTube vids and walking about you'll avoid stumbling into objects and passersby.

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The best thing about walking is that you are your own boss: start and halt, look at everything or nothing, think about a lot or a little.

ECONOMIST: Walking

In extreme cases, you might think about muzzling the dog if you're out walking amongst other people.

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Think about walking through the mall, your credit card provider through your buying habits knows you buy your wife jewelry.

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Imagine walking into a meeting room that recognizes who you are and what your meeting is about, pulls up your presentation for you and gets people on the phone.

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You see her walking her dogs so she obviously feels confident enough to potter about.

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How do you convince people used to walking or driving to fit this very different way of getting about into their lives?

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