Walk and charge? I like the thought.

Instep NanoPower: Powerful Kinetic Energy Generator Fits in Your Sneaker!

http://inhabitat.com/jog-your-way-to-a-charged-cell-phone-with-instep-nanopower/

Another Walking Quote

We here at 2 Blokes do not subscribe to this philosophy. Time for a walk.

"Walking isn't a lost art: one must, by some means, get to the garage."

- Evan Esar (1899 - 1995)

Found on the Quotations page