I agree with Brendan's comments.
Without a definite timeframe, things tend to languish on my "that sounds great, I'll get to it one day" pile!
Also, don't know whether this would be practical, but I'd love to have a central place where people who wish to could post their answers/ideas/comments/pictures. That way if I need some extra ideas or motivation I could browse through the posts from people who have already completed that task.