We did a podcast called "A Better Outlook" a while back and talked about ClearContext, SpeedFiler, and Taglocity. I've also talked about TiddlyWiki and for a while, ran my home page on Tiddly. (If you, your parents, or your school thinks you need a blog, you might try TiddlyWiki. Once you get it, it'll blow your mind. Some folks are using it to take notes in class. Brilliant.)
Don't freak out and think it'll mess up your Outlook, you can detangle it from Outlook by going to the same Properties Dialog and clicking "Restore Defaults."