My computer nerd co-worker told me that his father told him at their wedding reception that there are five things you need to do in order to keep your marriage intact in times of, shall we say, discourse? I think that he is pretty spot on with his suggestions.
Here they go. In case of a disagreement, the man of the house is to immediately say these five things, preferably in order:
1. Please forgive me.
2. You were right, I was wrong.
3. It will never happen again.
4. I don't know what came over me.
5. I love you very much.
I have, of course, made my co-worker repeat all of these things to me any time that he disagrees with me which, of course is often, given his viewpoint of functionality vs pretty with our software, and my completely opposite view -- it's not gonna function well, unless things are cleaned up and pretty. I do, however, modify the last one a bit, since him telling me he loves me is just plain wrong, since he is very happily married. Instead, we have substituted it with "I have a deep and abiding respect for you and your position."
Repeat as necessary. And please note, there is no version for the female to use. As we know the man is always wrong. Right?