For me, it’s pretty rare that I develop fluid website layouts, so I’ve not played much with them. However, as part of a recent project, I needed a way to create a fixed-width sidebar and a fluid second column. I started searching around, and came across an old (January 2006) article from A List Apart (ALA). Although it’s old, it’s still extremely useful. It’s fairly aptly titled “The Holy Grail.”
The article explains how to create a three-column layout with fixed-width side columns and a fluid center column. For this particular application, I modified it slightly to use a two-column layout, but I’ve since realized just how powerful and useful the techniques described in the article are.