1.  Keep manila folders in your back pack for each group of papers... they are easy to find, easy to open and close, when they get old, switch them out.
                     ex: Folder names might include; "to turn in"
                                                                      "returned old work"
                                                                      "notes"
                                                                       "paper" (ready to be used.)
                                                                       "Misc."
                                                                         ...etc.
 2.  As nerdy as it seems, keep a pencil box or bag.