Wow, this sounds like a good tutorial, most people become lucid and sure, they may enjoy the dream, but they never get what they want done.

I think though one rather large roadblock for some people *cough*me*cough* is that we tend not remember the goal we set up for ourselves IRL when we're in a LD. Honestly, there's only one goal I've accomplished so far and that's reading and remembering text [which no longer changes on me ^^].

I try to remind myself of a goal I want to focus on before I sleep, but I tend to forget it in the dream, lucid or not. I don't know, maybe it's just me, maybe I'm not focusing enough?