The suggestion I like best for how married couples should split their money is to have the money both people earn go into a joint account that's used for both household expenses and savings. Then you agree on an equal set amount of money that you'll each get every week or month to spend however you want. This gives everybody some freedom to spend money on personal expenses without worrying about what the other spouse things. Meanwhile, you can operate as one unit when it comes to everything else-purchasing a home, planning a future, etc.
If you want to keep more of your money separate than the approach described in this article can work as well.
http://www.oprah.com/money/Keeping-Separate-Bank-Accounts-Suze-Ormans-Advice-for-Couples
If you're not comfortable sharing as much of your money as the article recommends, then I have to wonder why you're even marrying each other.
“This planet has - or rather had - a problem, which was this: most of the people living on it were unhappy for pretty much of the time. Many solutions were suggested for this problem, but most of these were largely concerned with the movement of small green pieces of paper, which was odd because on the whole it wasn't the small green pieces of paper that were unhappy.” ― Douglas Adams, The Hitchhiker's Guide to the Galaxy