Don't want to put all your applications in the dock? You've probably heard the tip of placing your applications folder in the dock instead, but you probably want to have some control over where your folders in that folder are displayed, right? These menus just look messy, don't they?
Here's the solution: by prepending a folder name with '|', '>', or '~', you can force all the folders you have in Applications to show up at the top of the menu (anyone know what character to use if you want them to show up at the bottom?). If you don't follow what I'm saying, simply click on this picture and you'll see what I mean.
[Editor's note: In both OS 9 and OS X, I use "zz" in front to make folders go to the bottom. A look at an ASCII character chart would probably find a better solution!]