Are you still using JSP as view technology for you JSF pages? You shouldn’t! Although not an official standard (yet), Facelets offers many advantages over JSP. Facelets adds templating and an easy way to create ‘composition components’, just to name two of the most important benefits.
Another very useful feature is the debug option. By just adding something like
<ui:debug hotkey="p" rendered="true"/>
to your page, you can now display a debug window at runtime by just pressing CTRL + SHIFT + P in your browser window. Unfortunately, there’s a little bug in this debug window, preventing one of the expandable sections to expand.