I love the idea of logging Green Miles. Now, to figure out how to add it to my logs (yes, plural, sigh).

The miles do add up. And remember, the short, stop-and-start, sitting-in-traffic, never-quite-warm-the-engine-properly miles are harder on your car's engine & use much more gas than long highway miles. Hmm, do you think that Green Miles should count double? I've talked myself into it.