At least 70 percent of the time the woman doesn't control the investments or know much about them -- and it's not much different with younger couples.

Men almost always wind up in a better situation after divorce. Women wind up in a worse situation.

It's definitely a case by case thing. For the most part, there's nothing wrong with commingling, as long as spouses doing the commingling realize they are not going to get back the assets they came into the marriage with. On the other hand, it can add tension to the marriage if one spouse keeps assets separate.