Near the end of Planes, Trains, and Automobiles, when he's reached Chicago, Neal boards a train. Since his money was stolen and all of his credit cards had burned up, how did he pay?
Considering that a great number of scenes ended up on the cutting floor, including scenes that would explain events that did make it to the end result (e.g. why did someone break into their hotel room and steal the money from Neal's wallet?), it is possible the explanation for this inconsistency was left out of the final movie.