Photography themes

Do you ever notice themes, or common threads, or particular objects, running through your work? You know, like when your looking at a body of your work, and there are some similar shots/styles/things that keep popping up? I have several that tend to run through mine.

I think a lot of you know full well my fascination with power poles. But a new theme that I just recently picked up on is silhouettes. This is a fairly recent thing for me, but I think I really like what I am seeing start to develop



So what themes run through your work?