I'm no expert at being married. I've made some mistakes here and there. I can only hope that you will learn from my mistakes.
There are several obvious things, like... don't forget your Anniversary, her Birthday, Valentine's day, etc...
Then there's the less obvious. While driving around together, and you see a beautiful woman walking down the street, don't slow down, mumble to yourself incoherently, and then speed up after you pass her. Similarly, while watching the television, don't make comments like, "Mmmm.", or "She's pretty", or "I'd like a piece of that!". My wife doesn't appreciate that, and yours *probably* won't either.
Try not to complain too much. Compliments work much better. For example, "You look pretty today", and "My socks are nice and clean", "Dinner didn't taste like roadkill tonight, like it usually does". You get the idea.
I'm sure you'll get plenty of advice now, that you've agreed to it. I have one last piece of advice, though. No matter how much you want to, do NOT record the sound of her snoring. She won't like it. Whatever you do... don't post it on the internet. She'll probably scream. And for god's sake, don't send an email to her co-workers pointing them to the web site.
-George
Strong and bitter words indicate a weak cause. - Fortune cookie wisdom