I haven't seen it mentioned yet, so in case you're a big Calvin and Hobbes fan and haven't heard about Watterson's brief return to the comics page as a guest artist for Stephan Pastis' Pearls Before Swine, Stephan describes the whole thing in a really fun story here: https://stephanpastis.wordpress.com/2014/06/07/ever-wished-t...
It includes links to the strips.
C&H remains one of very few influential and yet uncorrupted parts of my youth. I'm grateful to Mr. Watterson for never selling out. But it's bittersweet, because kids don't read newspaper funnies with their breakfast cereal anymore, and I fear that Calvin and Hobbes will disappear from the public consciousness long before Garfield does.