Does Living Together Before Marriage Really Save You Money?

I read a post recently on Young and Thrifty about whether living together before marriage saves you money or not, and I have to say, it was more a post on whether or not you should live together before marriage, not really a whole lot about the money side of things, so let me elaborate...

Mike moved in with me literally within the week we met. This may sound odd to a lot of people, but it's what worked for us, so we've had plenty of time to know each other's habits and whether or not we can live with them. From a financial standpoint, for about six months after he moved in, he didn't contribute to rent or a lot of money for things like food, etc.