As someone who has been married for over 20 years, I have been through the best and WORST of times.
On my wedding day my dad told me what he felt were the two rules to a peaceful marriage, and I have them written down above my desk.
Rule 1: The woman is always right
Rule 2: If the woman is ever wrong, see rule 1.
It has been the greatest source of laughter for me in over 20 years. On those “rare” occasions when my wife really annoys me, I just take one look at that, start laughing, and I’m no longer upset.