Bundled with my new PowerBook came, among other apps, OmniOutliner. I was familiar with it from before, but I couldn’t quite figure out what to use it for. Today, however, I pasted into it the names of all classes in the system I’m working on, and used it to arrange them in a better package structure. Usually, I think that a pen and a paper beats any app when doing design work, but in this case an outliner was really helpful.