Do you every wish you could give out your email address to students so they can submit assignments electronically? Although this can save time and be a great convenience it can be a problem too. Perhaps you don't want to give your address out to students or you would rather not be subjected to the interesting user names your students find appropriate, but are not!
This can be easily done with a Gmail account and an address provided by your Google Docs. Full instructions can be found at http://sadwiki.wetpaint.com .