Try some of these from the slickdeal thread.. it seems like they may be tied to one per account as some of them were supposedly used and I was able to order with them


5989301592485565
5989301568007005
5989301568305508
5989301569507730
5989300038662449
5989301572392591
5989300443577067
5989301572418222
5989301573462500
5989301573782931
5989301575225426
5989301575595570
5989301577881887
5989301578015998
5989301579130424
5989301580472609
5989301581664337
5989301584146753
5989301587130689
5989301588371829

Edit: I'm also having to clear history in chrome and restart for each order on staples in order to get the coupon to work. Otherwise staples says coupon has already been redeemed.