Ignore the never go to bed angry advice. For some people it works for others it does not. The couple will have to figure out what works for their relationship. There has been many an arguement in our marriage that required us both to sleep on our feelings. Sometimes you are too in the moment to see when you are being irrational. That nights sleep helps put things in perspective.
As a pp stated-never criticize the help they give you or they won't help with that task again. It took us both awhile to learn that one.
Remember that you can't change them. You can only change the way you respond to situations. For example: When the kids were little it used to drive me bonkers when I was ready to go, would ask dh to load the car and then he would just talk to his family forever. I would end up loading the car and getting the kids ready all while he was having a great time. I would be nasty to him and basically pitch a fit. One day I realized I had a choice. I could either accept his timetable or accept that I would be doing it. I accepted that I would be doing it. I would load everything up, get the kids ready, and tell dh we are leaving now. He would get up and we would leave. No drama.