Last fall I introduced many of you to gClassFolders. gClassFolders is a Google Drive script that will create folders for you for as many course sections as you need. The concept behind it is this; students have a "dropbox" folder in their Google Drive accounts that you have shared with them. To submit work students drag files into that "dropbox" folder. From there gClassFolders sorts submissions to the correct folder for each student.
The latest version of gClassFolders is part of gClassHub which includes other useful scripts like Doctopus. This means that after your students have submitted their work through Google Drive you can grade it, write feedback, and have emails sent to students from one spreadsheet in your Google Drive account.