Well, several ideas come to mind:

• there's the usual log munging that can be done on the back end,
• automated project builds (perhaps using template toolkit),
• set up a heretical server to play with stuff like HTML::Mason and the Template Toolkit,
• Application testing, perhaps using Puffin,
• set up a wiki for your group,
• use perl to write your ASP code for you.

These are some off the cuff ideas. Each of them should, however, provide you with plenty of fun projects to distract you from billable work.

Have fun!

TGI says moo