1. Don't blame W. - I had this bad habit when anything would go wrong to immediately find a way to blame my W for some aspect. I don't do this any more. 2. No cutting comments - I used to make small jokes at my wife's expense. they weren't horrible and it was kind a thing in our relationship. She'd laugh and flip me the bird. I'm working on not doing this. 3. Try to really listen to my wife when she talks about work and just as important when she engages me about work really respond to her. My W and I used to have a long running joke about not listening to the other one. There was Simpsons episode where Marge is talking to Homer and he responds with "Sure they will" to something she says that has nothing to do with what Homer said. so we always would throw in a "sure they will" as a joke. 4. Try to be comfortable with silence. I've learned that for my W, it is meaningful to spend time together w/o necessarily talking.
I'm sure there are others too.
Patience is bitter, but its fruit is sweet. --Jean Jacques Rousseau.