With road rage being so common these days, we should all take a step back and review a few rules of the road. While not taught in most driver education classes or state driver's manuals, these rules will help you be a better driver.
The left lane is for passing. If you are going to pass, do it quickly and safely. Some states have laws that prohibit "driving" in the left lane, leaving it open for passing only.
If someone is trying to merge onto the highway and you have room, get into the left lane. This can help avoid an accident or at the least make someone's day a little brighter.
Be aware of large trucks and their driving styles. Tractor trailers, dump trucks, and other large vehicles can not stop as fast as you can. Keep that in mind the next time you squeeze in front of a truck at the stop light. Also, heavy trucks while on the highway will slow down while going up large hills but pick up speed on the downhill side. This can lead to a game of leap frog which will frustrate you and the truck driver. If possible get far enough ahead of the truck to avoid excessive passing!
Use your turn signals. I swear they were an option in some cars, considering most people do not use them. They are there as a signal to inform your fellow drivers where you plan to go.
I guess this has been a list of my pet peeves, but I hope it will help you have a safer trip down the road. Remember, we all share the road and together we can make it safer.
Take care and safe driving,