When studies show that the vast majority of marital disagreement is about finance, we figured we'd just cut that part out. It's worked like a charm. I suggest it to all of my friends who are getting married. My brother listened, and it's worked great for them as well.
I suppose it's not for everyone, but we feel like even though we are married, we are still individuals, and part of being an individual means having your own dayum checking account.
I'm also with CC. A week or so long vacation with the wife, to a destination of her choosing, will go a long way come September.