Dinner time conversation. Let him say everything before bedtime. I find this really helpful to stop the bedtime "oh, and another thing..." sort of conversations.

I don't know if you have any faith or not, but "talking to God" helps us. So Liebs says prayers before bed, and when I go, he can talk to God. OK, it means that sometimes he's up past my bedtime, but it means that usually he goes to sleep.

He also has the coolest bed in the house, so doesn't want to sleep in mine any more. Before he got that bed, he'd be in our bed as often as he could be.