Okay, now that was silly. I don't want this to get into a debate or delve into politics--this is just my favorite solution of many.
What I mean is if we use fewer petroleum products to generate our electricity, that will cut the cost of all petroleum products due to reduced demand in general, which translates down to gasoline, too.
When it comes to alternative fuel vehicles, as gas gets more expensive, we have fuel cells (hydrogen is too expensive to make their use economical yet), compressed natural gas engines (this is mined in the United States and requires no refining, so is cheaper than gasoline) and even compressed air engines (these are new and fairly experimental--not produced commercially yet).
My point is there are solutions.
For today, keep those tires inflated and check your air filter. Sounds small, but it helps.