Doctopus is a Google Spreadsheet script developed by Andrew Stillman that can help teachers manage the flow of shared work in in their Google Drive accounts. The basic concept behind the script is to enable teachers to quickly share documents with all of the students on a roster, monitor usage of shared documents, and give students feedback within that roster spreadsheet. I was thinking about creating annotated screenshots of the process of using the script, but then I found a couple of nice screencast videos on YouTube that walk teachers through the process of using the Doctopus script.