The last time Labor Day gas prices were this low, George W. Bush was in his first term as president. Prices have been going nowhere but down since June. And according to AAA, the average price of regular gasoline is now $2.40 per gallon — or more than $1 less than it was a year ago. For this weekend, a time when a lot of Americans hop in their cars, prices are at 2004 levels. The decline has been widespread. Average prices are still above $3 in only four states: California and Nevada, as well as Alaska and Hawaii — two states where everything is always more expensive. Of the country’s 130,000 or so gas stations, more than 5% are selling gas for less than $2 a gallon, AAA says. In South Carolina, the statewide average has fallen below $2 in the past week. For a lot of people, […]