I'm a guy...

Don't do it! We all need our space, and we don't need to wake up to "why didn't you put your bloody socks in the washing basket?", all this continous nagging (which I'm pretty sure will always happen) really help to kill any romance or attraction that might remain.

If you're not careful, you'll become his mother not his lover, and he'll hate that. Also, you get sick of people when you see them all the time, moving in with someone is a far better idea in theory than in practice...

Me, personally, I REALLY need my alone time, I need a good 4-6 hours a day alone, or I start getting annoyed. When I was living with my last girlfriend I wound up staying up later and later into the night after she went to sleep just so I could be on my own....

Think VERY hard about this.