The Opinion section has what purports to be "The Year in Cartoons." It's not a very good selection.
Steve Brodner illustrates 2009 predictions in the last Sunday Source section, which also presumably means that we won't see Danny Hellman's illustrations in the paper anymore either.
A wire story on Broadway's Shrek musical (sigh) was interesting - "The Star of 'Shrek' Basks in the Green Light," By Kristen A. Lee / Associated Press, Washington Post Sunday, December 21, 2008; M10.
Dave Betancourt's review of "The DC Comics Encyclopedia," Washington Post Sunday, December 21, 2008; Page BW14