Thanks for the links to the breathing page! I will be certain to incorporate that into my daily routine.
It's funny that you mention riding bus "hands-free." My friends and I would try to surf (inside) buses when in high school. We were from a small town where there wasn't a terrible amount of stuff to do. If someone had told me that I was practicing my ki then I would have probably laughed in his face. I'll have to rekindle old habits!