This summer, I did two things: sleep, and take pictures. Lots of pictures. It was very productive in the sense that I learned more than I ever thought possible about my camera. It was very unproductive in all other senses.
I spent the majority of my time photographing this summer fiddling around with exposure length and aperture size. Here are some of my experiments:

“Starr Trails 1” -- 3420 second exposure (57 minutes), at F8.0