Today's gas prices make many of us think about driving more efficiently. " Hypermilers " go to extremes, eking out up to 100 miles on a gallon of gas. They may take cues from Granny (50 miles per hour in a 65 zone, anyone?), but Web sites like greenhybrid.com and cleanmpg.com now lend gas-sipping efforts a competitive spirit. Join the fray with these tips:
An extra 100 pounds of cargo can reduce your mpg by up to 2 percent. Remove that surf rack when the waves are flat, and take the rock collection out of your trunk.
Back into parking spaces. Cold engines use more fuel, so three-point maneuvering is more efficient at the end of a trip.
Use cruise control
Pressing the accel button lets you speed up in smaller increments (and burn less gas) than even a feather-weight foot on the pedal.
Brake (very) gently
Skilled hypermilers coast to a crawl with hardly a touch on the brakes to avoid wasting an ounce of fuel at traffic lights.