The cost of gas continues to plummet.  Cars were lining up at Bliss Express in South Dartmouth this morning to pay the cash price...$3.09 a gallon!  Stop and Shop on Dartmouth Street matched the $3.09 price this morning, as did the Gulf Station on the corner of Dartmouth Street and Rockdale Ave.  Those are the lowest prices in the state today.  The average price is $3.32 a gallon.  With US oil production booming...analysts expect the price of gas to keep dropping.  Could we fall below the $3.00 a gallon mark?