Interestingly, I had another brief lucid dream last night. Again, it began as a regular dream and again it turned lucid when a bathroom light switch failed to work. I remember thinking "this happened last night and I had a lucid dream!" and immediately I gained lucidity. After flying aimlessly around for a bit, it morphed back into a regular dream from which I eventually awoke. I was able to recall the entire dream from non-lucid to lucid and back to non-lucid. Maybe I have broken my dry spell. Now to focus on clarity and extending the lucidity!