This is a decent first year marriage list, but as with all things, there are shades of gray that develop the longer you are with someone.
1: Never go to bed angry. Actually, never go to bed angry at your spouse -- you can be pissed off at the dog all you want; just make sure they know you aren't pissed at them.
2: Find a few minutes to connect with your wife every day. This is a good statement followed by mushy crap. Instead of saying variations of, "I love you," actually try doing something with her. Go for a walk, catch a movie, cook dinner together, etc.
3: Never say the word divorce. Unless you guys are discussing ways to get tax breaks... (this goes back to the whole, "Laugh Your Way to a Good Marriage" thing someone mentioned above)
4: Agree with each other that when you're having an argument which gets particularly heated, it is ok for either person to walk out of the room, and the argument can just wait until tempers have cooled down a bit. Let me sum this up: "Agree that you can walk away from an argument."
5: Always put your wife first. This is true up until they stop putting you first. This is a point of mutual respect and once that respect is lost for whatever reason, you need to sit down together and get it back. For example, you're a gamer, she isn't. Invariably she *will* get you to stop playing games and do something like watch TV instead. This is a breakdown of this rule on both sides -- if you're a gamer, there is nothing wrong with that, but there needs to be compromise from both parties. It can't be all one-sided.
And two of my own additions:
6: It's almost more important that you *LIKE* each other than love each other. The moment you stop liking your spouse is the moment you start going downhill.
7: Compromise. You have to if you want to stay together. This dove-tails nicely with #6 here.