I don't know if it has been done, or if people would be interested but...
How about a bizzaro world posting day?
Step into the skin of your favorite blogger (or writer's) personality/lifestyle and let loose.
Write about sleeping with three Swedish Catholic schoolgirls in the back of Jerry Garcia's van and not spilling a drop out of your water bong.
Mention those stories about playing euchre and chinese poker at 4am with Raymer and Isabelle Mercier in Monte Carlo.
Maybe its a lame idea, I dunno, I'm pretty fried after writing that post yesterday.