[cogs]

I see no one has mentioned Scrivener.

I love it because it allows ideas to grow organically from a single sentence to a whole book; or a single idea into a project spec and plan.

I use it to manage all my personal projects. They usually start off as an entry in my Scrivener based journal, and get a Scrivener document of their own when they start to fly.

The reason it's so good, is that the UI supports shuffling all the bits and pieces to structure and restructure the project as it evolves; and it equally well supports long form writing, capturing idea snippets, screen shots and webpage clippings.

Tools like Evernote are good for capturing, but rubbish for turning the bits and pieces into a single project.