What's mine is mine: Spouses with separate bank accounts

Do you think sharing everything is part of any good marriage? How about finances? Have you ever considered keeping your money separate from your spouse's?

To some that sounds radical, as they believe that combining finances is a big part of becoming a true family unit. On the other hand, money is probably the most common root of problems in a marriage.

Some now say that separating finances might actually be good for a marriage. And in case the marriage ends in divorce, it might be the best thing the couple ever did.

Keeping finances separate comes down to protecting yourself, some people say. How can a spouse protect himself or herself if the other spouse controls all the money? How will the spouse know how much money they have or where it is?