The days of three dollar gas may make a comeback.
A new report from AAA puts the national average of a gallon of gas At about $3.35.
That's down 21 cents from a month ago.
AAA says it expects gas prices to continue to fall and possibly reach an average price of $3.10 to $3.20 a gallon by Christmas.
The motor club attributes the drop to steady demand, sufficient supply and a cheaper winter-blend of gasoline.
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