1. My menu generating script can be found at https://sourceforge.net/projects/xfce-menu-maker/. While there's only one svn commit, it's pretty stable (I've worked on it for a while). Let me know if you find any bugs.
2. Did you realize you can drag windows from one workspace to another INSIDE the workspace switcher? That's right, just click on that little firefox icon and drag it to your screen.
3. I am in love with xfce's extensive options for window transparency and focus. It can provide a very different and more productive desktop interface.