Saturday, January 20, is the drop date for tutorials, when the organizers need to decide if any of them should be cancelled due to low attendance. This year a few of the tutorials haven't gotten enough people yet, and are in danger of being dropped. If you're thinking about registering for a tutorial but haven't done so yet, please try to register before Saturday; your registration might be the one to save a tutorial from cancellation.
(I'm deliberately not mentioning which tutorials are at risk, because if a tutorial is on the edge, people may decide to sign up for some other tutorial. This post is intended to encourage everyone to hurry up and register.)