Michael Crichton wrote an article on how to argue in a relationship for Playboy back in 1991. The article is fairly lengthly, but I think that it has some really get insight onto what exactly causes arguements, and the best ways to go about dealing with them. This was written for guys, but some concepts can easily relate to the girls.
One of the concepts relates around postponing a fight. Basically you would negotiate fight terms, because there will most probably always be a time when a fight is inconvenient to one partner or the other. His personal example was that there could be no fights after 11 pm. In his experience 97% of the fights never lasted in the morning. Interesting right?
I know this may sound like a stretch, but I think half of his advice could be used on unhappy clients, coworkers, friends, and family. Good luck!