In addition to the yearly Perl Advent Calendar from Jerrad Pierce, originally started by Mark Fowler, the Catalyst Team have put together their own Catalyst Advent Calendar.
Each calendar gives a new tip or trick or module to use each day. Today's tip on the Perl Advent Calendar is about how to use IPC::Filter to communicate between processes, while yesterday's entry on the Catalyst Advent Calendar discusses how to create PDFs for your web application.
Having drank at least *some* of the Cathedral and the Bizarre cool-aid I handed over the Perl Advent calendar to Jerrad Pierce a few years back when I didn't have time to run it anymore. I'd love to take credit for all his hard work since, but I won't. Can you update this story to give credit where credit's due?