Google desktop:

I've just installed google desktop on my computer, and set it up to do a little slideshow in the corner of my screen of all the photos on my hard-drive.
The cool thing about it is that you get to see photos you had completely forgotten about, like this one of me and Jayda.

Google desktop also has a scratch pad feature, which I use for jotting down sermons notes and ideas throughout the week.
The cool thing is that it can run on any computer that you have, so what ever you type on one computer will end up on another.

Oh, and you can also set it to notify you when blogs have been updated, like mine!
Peace D