Simple markup, organised CSS
In Lean XHTML and Precise CSS, Mike Rundle talks about his way of laying out and structuring CSS files and the advantages he believes his coding style has. He also talks a bit about separating design from content and the advantages of doing so.
Nothing revolutionary here, but I always find reading about other people's coding style interesting. There's always something new to learn or a coding detail to be picked up and incorporated into your own style. Indenting CSS rules, for example, is something I've started doing after reading about it in a couple of articles.