It used to be that weather was the safest casual conversation starter. Today it's the price of gas. Clark was stunned when he was filling up his wife's car and the bill came to $57; he knows that many folks can top that easily, but it was shocking to him! Recently while filling up a rental car, the pump didn't shut off properly and spewed out additional gasoline. Every last drop is precious these days. We are in a time when the high prices have us more focused on alternative solutions than ever before.

Clark loves his natural-gas vehicle, but that type of car hasn't been embraced by the masses. It can be difficult to find a filling station. Still, he firmly believes that American ingenuity will come up with answers to end our foreign oil dependence.

Here's an example: A man named Floyd Butterfield started the E-Fuel Corporation and is selling a home-fueling station that's the size of washer/dryer stack unit. It allows you to take sugar and make it into fuel to power your car. The price of the device is $10K, so the payback is nowhere near immediate. The New York Times reports that the sugar it would take to create a gallon of fuel would cost around 30 cents.

Will this catch on? Is it vaporware? We don't know yet. But the point is bright people are working on alternatives to power our vehicles. GM is preparing an electric car called the Volt, and Toyota is working on its plug-in hybrids. Meanwhile, there are experiments to turn tree waste into fuel, and Pres. Bush is a fan of switch grass as a fuel.

Many of these experiments won't prove viable. But we're at a new time when we're willing to listen and learn from people we might have dismissed as kooks in the past. For example, Clark is a fan of electric bikes for city commuting. They cost a third of a cent per mile to run and emit nearly zero pollution. Just be prepared to get wet on rainy days!