p.m. ET on 9/15/2017.Op=n to legal residents of the 50 U.S. and D.C.Must be 13 years or older to e=ter as of date of entry.Sponsored by Staples the Office Superstore, LLC.Fo= Official Rules, visitwww.staplesforstudents.com CUT =ERE Expires 09/22/18 $10 OFF your purchase of School Supplies Valid in-store only.