Fun things to do after lucid realization?

I recently have been realizing cues in my dreams that they are in fact dreams. I seem to be very able to stay lucid with little effort. Afraid of losing my lucid state, last night I even overdid it with my precautionary attempts to stay lucid (physical tests, commands, etc.) and started feeling my eyelids over my eyes. I figured I would just fly, like I did in my last LD, but I decided that wasn't good enough, but I couldn't decide on what I actually wanted to do. I woke up shortly after feeling as if I had made progress, but does anyone have any advice about interesting things to try or ways to find out what I really want to do with/to my subconscious mind?