You know how Command-Click opens a link in a new tab in Safari Beta 2? Well, I just stumbled on this: If you have a folder full of links in your Bookmarks Bar, Command-Clicking on the folder will immediatley open all the links in the folder in their own tabs within one window. I just opened 20 sites in one click! Now to create a quick-access folder to make good use of this feature.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20030320195856738