[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/images/11/17/art.traffic.2.gi.jpg caption=" How have plunging gas prices changed your habits?"] FROM CNN's Jack Cafferty: Oil prices continue to slide, closing below $55 a barrel today. That's a pretty far fall from the July record high of $147 a barrel. Iran is calling for OPEC to cut production by at least 1 million barrels … Continue reading Plunging gas prices changing driving habits?