Real exciting to me as far as style sheets are concerned are Chris Casciano's <a href="http://www.neuralust.com/~cac6982/">nineteen homepages</a>, the same content rendered differently by nineteen different stylesheets.  I'm not a guru of cross-browser compatibility (I'm working with only IE 5.0 on Win98) nor a pro web designer (amateur at best), but I've tried my own hand at creating <!--<a href="home.cgi?sheet=01">alternate homepage layouts</a>--><i>temporarily unavailable alternate style sheets</i> using what should be a safe set of stylings.