Here's a piece of advice from the Jollyblogger that I'm taking to heart:
"These 20 years have gone by way too fast and I wouldn't trade them for anything. I won't try to wax eloquent on keys to a happy marriage except to say that sound theology is the foundation for a sound marriage. I truly believe that if a married couple can grasp total depravity and grace then they are on a sound footing - they won't need much extra advice. If we don't grasp total depravity and grace then all the marriage books and seminars in the world won't mean a thing.
"Total depravity is key because it reminds me that my wife is married to a sinnner, so I need to go easy on her - she's got a tough life being married to me. It also reminds me that she is a sinner so I don't have to burden her with a load of expectations she can never meet. Grace reminds me that her performance is not the basis of my acceptance of her any more than my performance is the basis of God's acceptance of me."