When I was growing up, what I remember most about lucid dreaming and astral travel were encounters with undesirable (to me) entities and flying. I won't go too much into encounters, but will share that I frequently flew after my head hit the pillow. I often flew high over my school or even around in the basement. It's been awhile since I've been able to recall flying, but I'd like to think I'm just not remembering.
When considering my dreams and astral travel experiences as an adult, different things stick out. What I mostly recall is that I frequently dream of the same places (which don't exist in my waking life). Sometimes there are people I talk to that I know only from my dreams. Other times I'm alone searching for someone or something. It recently occurred to me that just before waking, I often seem to be quickly making my toward a doorway or portal of sorts. I'm not sure if this is just me returning to my physical self or something else. I hadn't really paid attention to that pattern before now, as I've been really bad about documenting in my dream journal the past few years.
How about you? What patterns have you noticed from your own dreams or travel experiences?