That is a nice dream. However, semi trucks use diesel which comes from oil, and they have to keep driving and buying gas. Would you like to no longer get your food or supplies at the grocery store and have the shelves empty for two days a week? Airplanes are the same way. I guess the world could stop flying for two days. Oil is also used in the manufacture of all plastics and many other compounds. Stop buying all forms of plastic and you'll help too.
Oil is not an easy problem. Prices are controlled by futures traders who spook easily right now. The EPA has also added a new fuel requirement to make diesel and gas burn cleaner so they pollute less. There aren't enough refineries to refine surplus oil when it comes. They run at full capacity 7 days a week. That is why Katrina did so much damage to oil prices, because refiners lost 20% of their refining capacity, so we lost 20% of our oil each day.
Get ready for a sticker shock, because we are going to see close to $3 a gallon gas this summer when supply picks up, and nothing is going to stop it. Also, if we are dumb enough to attack or sanction Iran, they will sell all of their oil to China instead of us, and our gas prices will probably hit $6+ dollars a gallon. I bet that would kill the stupid SUV market pretty quickly. In addition, if another few hurricanes hit the gulf, gas prices will skyrocket.
Sorry there isn't a nice answer for this, there isn't. You can't change the driving habits of 180 million people. No matter what that silly forward you got from your friends says, we can't boycott oil, we are all too dependent on it.
It will all come crashing down on us eventually, but there isn't much to do about it for now. Sorry.