Besides the advice I gave a few months ago, here, I would also suggest the following:

Review your existing codebase. How many modules are used? How many CPAN modules are in use? What scope is there for improvement and coding standards?

As suggested by seattlejohn, have a GOOD look around CPAN. Find some modules which are work related, or find some modules which tickle your curiousity. Then download them and have a play. I guess your employer can't have that bad a policy about downloading open source code, if you are using Perl.

My $0.02 -- rW