While the rising cost of oil has the price of gasoline skyrocketing faster than global warming is melting glaciers, people everywhere are preparing for cross-country road trips to Grand Canyon National Park and summer camps in Maine. We can't really argue with that innate desire to get closer to nature and out on the open road, and whether you're a die-hard cyclist or a still driving an SUV, chances are you plan to get in a car to go somewhere this summer. So whether you're packing up the Prius for some close-to-home camping, towing the boat to far-away shores, or merely fighting the crosstown traffic, these money- and gas-saving tips are designed to help you squeeze every last bit of power out of that precious petrol--and cause fewer CO2 emissions, too. It's a comprehensive list--several tasks should be done before even starting your car; others require minor adjustments to your driving style. All of them aim to help you drive a little greener.