That's pretty much what I do too, although I've found that writing them down regularly helps me more than anything. The more I pay attention to them and write them, the less the auto-forget mechanism kicks in at all. I'll get to the point where I'm remembering four or five dreams a night and can write them a day later, if I have to, without losing much. It gets a little overwhelming though, so I only do this kind of deep mining on rare occasions.