FWIW, I have a "Perl programming CD" I carry everywhere (well, it's now a USB flash disk, but that's no matter) with the downloadable version of the html version of perldoc -- it uses JS for it's search function, so even without a net connection, it's still very useful.

It also has a miniature CPAN on it with such things as CGI::Simple, my snippets and utility module collection, some useful scripts, and a working PXPerl (for when I have to work on a Win box that has no perl on it; I've not yet had that issue with a *NIX machine...).