GasBuddy.com offers instant, user-friendly access to the today’s lowest priced gasoline pit stops, by area. The nonprofit GasBuddy Organization, Inc. notes that gas prices not only change frequently, but can vary by as much as 20 percent within a few blocks. Motorists, too, can contribute updates online, based on information gleaned as they combine errands around town or take a fuel-wise local vacation. The site helps everyone save bucks for more fun activities.