I write my LISP the way I write my JavaScript: I use one space for indentation, I break up my lines a lot, I nest deeply, and I tend to have a line break after the open and before the close, if the nesting is more than a layer or two deep and two broad. I'd prefer to use a tab for indentation, but I often find myself typing my code into an "eval box" (a textarea on a web page tied to a button that calls eval on the contents of the box).