My mom's school (small, private all-girls school in St. Louis) and others (see here) are distributing snow day packets. . . at my mom's school, it's worksheets that help count the day as a school day if a certain percentage of students complete their packets.
How is it 2011 (and I've been out of high school for 10+ years) and this is the first I've heard of this? Great idea, IMO.