People who do not realize what they are doing will exert a major influence over your day, so you need to stay extra-aware if you want to keep your cool right now. The drivers next to you? They're all chatting away on their cell phones, oblivious to the fact that their left turn signal has been on for ten miles. Zen it out. Don't let it get to you. Just keep your distance from clueless folks and realize that they will get their just desserts. Focus on what you're doing all the more.