Putting gas prices in perspective

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...according to the Department of Energy, "aggressive driving" (speeding and rapid acceleration and braking) can decrease fuel economy by as much as 33 percent at highway speeds and 5 percent around town. This can cost you as much as $0.49 per gallon.

Driving at high speeds creates additional wind resistance, which reduces fuel economy. Each five miles per hour you drive over 60 mph is like paying an additional $0.10 per gallon. Excessive idling will decrease your average mpg because idling gets 0 miles per gallon. Running electric accessories such as your air conditioner can decrease fuel economy. Limited, informal tests by the Environmental Protection Agency have shown a fuel economy reduction of roughly 5 percent to 25 percent for operating the air conditioner on "Max" compared to not using the air conditioner.