In hindsight, an Advent Calendar of Advent Calendars would have been fun. Ah, what could have been.
I seem to have a fondness for Decembers full of “nuggets of wisdom from my area of expertise” posts.
I’m pretty comfortable with Git, but I still learn something new just about every time Ed Thomson posts something about it. His Git Tips and Tricks Advent Calendar is a terrific resource for pretty much any Git user, in the “trust me, I know things, this will make your life easier” vein.