I'm a huge fan of cancelled plans.  I always have a bunch of things scheduled at night during the week, whether it's a Bible study or a class or something else.  But when they get cancelled, it's just such a great unexpected surprise.  I plan out my whole schedule based on something happening, and now that something isn't happening.  As long as it doesn't adversely affect me, I'm a huge fan.  It's great to go home at night thinking I have absolutely nothing planned.  It's a good feeling.