Create a "Hand-It-In" form in Google Docs for each class. The form will include entries for Name, Assignment (from a popup list to ensure consistency), link to [Gdoc, wiki, blog, flickr page, whatever], student assessment based on co-created rubric. That last entry is really important to me. I want the students to be reflective learners but I also want them to have clear targets so they know what excellence looks like. This also creates a bit of push-back for me to always ensure the students know the assessment criteria before they complete each assignment. They will also know how those criteria will be applied because they had a part in their design.