Buy a horse?, move to near a navigable river, move near a railway line, after a MAJOR collapse oil is definately going to be expensive and of limited availability, I can see major post collapse economies as they start to rebuild wanting to avoid like the plague getting into the same mess we are in now of being dependant on imported energy.
We Brits and Yanks can be petty dumb at times but we are fast learners and I don't think after a MAJOR Snafu we will want to be beholding to anyone outside our borders. This will limited our fuel and logistic options and the best most cost effective is likely to be Horses for local transit, railroads, rivers and aircraft for long haul. If we are LUCKY we may end up where Joe Q Public can afford to run a quad or hog but I reckon for quite a while fuel will go to the railways and canal boats to recommence commerce.
Many of the American founders of the survivalist movement often wrote back in the 70s that if they survived the big one, when they started to rebuild they would settle near a railroad line or navigable river to ensure they had a transit system. Soo accordingly those older skills will be required Loco Engineer, Welder, Boiler Maker, Wheelright, Saddlemaker, Leathersmith, Boat builder, sail maker, horse breeder / breaker etc etc