I like Mike’s Startup Control Panel. It is a good, simple, and effective tool. It let you control which program to load at start up. You can enable, disable, or even delete these program. Windows XP should have included this tool. Mike also has a couple more tricks in his bag, check them out.
ScrapBook 0.12.0 allows you to collect clippings (really whole Web pages) from the Web sites you visit. It organizes the clippings and saves them to disk along with your own comments and annotations. The original URL of the clipping is also stored so you can revisit the site for more information. You can search notes and clippings. An indispensable tool for conducting research using Firefox.