One thing Perl has going for it over Python is CPAN, the encyclopedic collection of Perl modules that do just about anything. CPAN’s overwhelming diversity of options can make it difficult to discover its hidden gems. During Decembers, though, there’s a new way to find unnoticed possibilities: the Perl Advent Calendar. Every day, a new flap is enabled, revealing an interesting contribution to CPAN. Clever, useful, and nostalgic, all at once, and there are even a few older calendars from previous years for the impatient.