Those pennies are starting to add up to more than pocket change. Gasoline prices in Massachusetts dropped another another 2 cents per gallon over the last week.
AAA Southern New England reported Monday that a gallon of self-serve regular is now priced at an average of $3.42 per gallon, eight cents below the national average.
In the past month, prices at the pumps have declined 17 cents per gallon — 40 cents lower than at the same time last year.
AAA found self-serve regular in Massachusetts selling for as low as $3.29 per gallon and as high as $3.69. Full story for BostonGlobe.com subscribers.