Doctopus - a tool for managing student assignments in Google Docs

Last week I ran across a great tool created by Kevin Brookhouser.  The tool is called Doctopus, and it helps to organize and manage student assignments in Google Docs.  There is some work that needs to be done on the front end, such as creating a class roster, but once that is done it makes assigning and receiving assignments from students a snap!  Kevin does such a great job explaining how to use this tool that I am going to post his videos rather than try to explain it myself.  There are two different videos, one is the set up and one is actually running the Doctopus script.