I really like this idea and I'm definitely going to try it with my next post. I find this site ever so helpful. I often find threads / posts that answer all the questions I have as a new blogger. Thank you.
You described my problem perfectly, too many ideas and no restraint with focusing on one topic. I think I'd have to run a few blog each with a different interest. I just know that the posts and quality will go up and down between them depending on current interest