I can say I have adjusted my driving habits given the fact that by summer's end I will likely have to get a second mortgage to afford a tank of gas. I am going A LOT more slowly. I am using my cruise control to maintain steady speed. I am making sure tire pressure is correct and keeping an eye on maintenance schedules for my car. I no longer take off like a bat outta hell at a green light. And I am amassing mentally a list of gas stations in various places around the Southland where I know I can find "cheap" gas (Arco station at Philadelphia and Haven in Ontario, CA - $4.29/gallon!).
But I try to keep up my sanity with a little levity.