It is time for a fresh, new look. At first I liked the Carrington Blog theme I used before. But after a couple of months I had more and more problems with it. For example, the comment column becomes very crowded.
I was always looking for a WordPress theme with a liquid design. Columns should adjust with the window size. I found some themes on the Internet, but was not too happy with the overall look. That is why I started to create my own theme. Not knowing to much about the internal structure of WordPress, I started reading and learning the documentation.