While talking with a friend one day he said to me, "my car gets 6 miles per dollar." Wow! I though. That sucks. Then I realized what he had said. "My car gets 6 miles per dollar."

Now I understood. It was a new way of thinking about how much it costs to drive a car. Not really a big revelation. Most people would say what's the big deal. But the thought struck me so hard that I felt compelled to make a page where you can calculate miles per dollar.