We all have enough stress at work without experiencing it to and from work on top of things. Learning to relax and let things go isn't easy, but trying the following tips may help you have a better and less tense commute:

Start off by taking a breather. Make a conscious effort to relax and set the right atmosphere for yourself -- be calm on purpose. This one surprised me, but believe it or not being calm and creating that atmosphere really will be a lot easier in a luxury vehicle. Going into debt over a buying pricey vehicle won't reduce stress for most of us, but if it does happen to be an option for you then by all means, consider it.
Aside from "new car scent" (haha), aromatherapy with cinnamon and peppermint has been shown to be relaxing. I don't think I've ever seen those little pine tree thingies in either of those two scents, though, so you might have to get a little more creative. And is there such a thing as a reasonable amount of distraction when in a car? According to the article, there is. Distract yourself from stress, but not from your driving (of course!) by watching other drivers at stoplights or listening to the radio. And along those lines, carpooling has been shown to decrease commute-related tension -- not only are you not always the one driving, but when bad things happen (think traffic jam) you have somebody to vent to.

Car exercises, like pulling up your shoulders, taking a deep breath and rolling your shoulders back, can help fend off fits of oncoming road rage, as well as being well-prepared before you even start. Take the few extra minutes to listen to traffic reports, the weather, etc. and leave a little early if you need to. And once you're going be smart about how you drive -- meaning the fast lane will clog with accidents first and the right lane, although it's sometimes slower, will be steadier and allow you easier access to the exits.