It used to be an April Fool's tradition that on April 1st, comic strip artists would swap comics for the day (e.g. Jim Davis would draw "FoxTrot" and Bill Amend would draw "Garfield"). Doesn't look like anyone did that this year, which is sad -- it was cool to see artists trying their hand at someone else's character.
The only hack I'm aware of is this one (as documented by @ philly.com): "Three of the strips, Get Fuzzy by Darby Conley, Pearls Before Swine by Stephan Pastis, and FoxTrot by Bill Amend, are virtually identical. They feature a story about a Ouija board that is supposed to spell out messages from the great beyond, but is used by one character to write out insults to another. Satchel in Fuzzy, Paige in Fox and Pig in Pearls get the taunts, and all reply with the punch-line, 'I imagined the afterlife to be a more peaceful place.'"
does anyone else know of other hacks?