Don't underestimate a site's search function.

In addition, I highly recommend just taking some time and go *browse* CPAN sometime. Even if you don't examine each module in detail, when a problem does come up later, suddenly you'll recall that you saw something on CPAN just for that task...

Likewise with The Perl Cookbook. Just read through it over a few evenings. Not every recipe will have immediate value, but later on, you will find yourself reaching for this book pretty often.