Well, you can download multiple toolbars and switch off. In internet explorer, if you download a bunch of toolbars and then--in the menu bar--click View->Toolbars, you'll be presented with a list of toolbars that are installed on your computer. In Firefox, it's the exact same thing (at least in version 1.5.0.1). I'll agree that it's not the most elegant solution, but it certainly works, and I can't think of a better way to do it with the toolbars since we can't control the code. Either way, these things are just so darn neat, and it looks like folks are having fun with them.