Cool O'Rama
If you use Firefox (as I hope you do), this extension is immensely handy:
Mozilla Update :: Extensions -- ScrapBook
Do you save a lot of webpage files to your computer, but hate how they're formatted or take up so much space in your folders? Well, ScrapBook is the solution for you. This handy sidebar integrates itself into Firefox to provide wonderful management of saved pages (all of the files are hidden nicely in your profile folder), and you can add comments and edit the saved page as much as you like. A must-have for avid offline browsers.