Agree with the above comments about reducing bloat, and I'm surprised by the number of smart people who think nothing of setting up a Wordpress site with dozens of CSS and JS files.

I just spent 20 minutes trying to find a link to an Apache function I found recently, which will join all your CSS or JS files together with something like an @include server-side automatically. Can't find it now but as I have been doing this manually I hope I find it again. Anyone know what this is? I seem to recall it was a native Apache function, not part of mod_pagespeed.