How low can it go?

Gas prices are sliding. I think gas is now the cheapest it has been since we got here. We paid $2.69 per gallon yesterday - which means it has come down about a dollar in a month and just under $2's from its peak. You can tell that the gas prices have dropped just by looking round the parking garage at work... the huge pick-up trucks are back! These things get about 20 feet to the gallon - you can't afford to drive by a gas station in case you run out of fuel!