Mindmaps

If you do a lot of mind-maps like me you probably should be using Freemind. It's Free, Fast, keyboard Friendly, and Fully Functional.

It's a great tool to capture and structure throughts and notes at the beggining of a project if you've outgrown your notepad but don't quite require a wiki and ticket tracker just yet.

If there was some cross-breed of TiddlyWiki and FreeMind that would be jsut perfect.

Free Mind
Tiddly Wiki