Gas prices were down again this weekend in the Keystone State. As reported by Triple-A, the average price for a gallon of regular fell last week in Pennsylvania to a few tenths under three dollars, 59 cents, this as the corresponding national figure also declined to a tenth over three forty-eight. Mississippi continues to be home to the lowest gas prices, with the Magnolia State figure dropping to just under two ninety-seven. Meanwhile, costs continue to be highest in Hawaii, rising slightly on Friday to a little over four bucks, 68 cents.