look, heres the deal...
Katrina was a huge excuse to raise the gas prices. We are running out, but not running out for it to jump $1.30 the past 4 years. If we are using gas that fast that in 4 years that it jumps up $1.30 then we have bigger problems. The war is also a huge excuse.
This is a proposal that someone else thought of. Instead of everyone not buying or using gas for a day (which utterly failed, if you even heard of it), no one should buy gas from the top two Gas companies, Exxon and Mobil, then they will be forced to lower their prices, causing the gas industry in general to lower their prices to compete with Exxon and Mobil at that time. The key is still don't use Exxon and Mobil after prices have started dropping, else they will just raise them back up again. You would need to siphon it out so Exxon and Mobil get enough money to be competition to the rest of the Gas industry, but not a threat. This way they will be forced to lower their gas. This would work if you could get enough people to participate in it.