Hi
I´m not very experienced with LD but I have a tip that you might find interessting enough to try.

Sometime in the afternoons i lay down and take on my headphones (I usually play soft techno becase of all the strange sounds there is too focus on). Then I just try to listen to the music without thinking. The music seems to draw up a scenery on my eyelids that becomes more and moore vivid and soon I find myself in some strange place between sleeping and beeing awake. If I have the right volyme on my walkman it keeps me from falling asleep and I can stay in this awesome state for quite a while. One thing though... I have never maneged to controll the scenery but I hope I will soon.