Flywheels to capture brake energy

Interesting idea. I've often wondered if there was some simple kinetic way of storing brake energy, rather than electric. I had been thinking more along the lines of a spring or similar, but it looks like Volvo is considering ways of accomplishing this with a flywheel.

From here:

Is your commute killing your marriage?

I suppose it's intuitive, but a recent Swedish study shows that longer commutes correlate to higher divorce rates.
If you think about it, it's not hard to think of reasons why this might be true: guilt of being away from each other, compromises in career, increased stress, etc.
It's just interesting to see a study that highlights this.

I often joke that my commute kills a little bit of my soul each time. Perhaps it's also killing my marriage...

From here.