In an order I just received from OfficeWorks they had these coupon codes which they claim are for 'new members', but I suspect they might be available to anyone:
NA3-PRALBUM - Free Photo Album with your 1st order of $100 or more
NA3-PRGYMBAG - Free Gym Bag with your 2nd order of $100 or more
NA3-PRCOOLER - Free Pink Cooler Bag with your 3rd order of $100 or more
NA3-WELCOME2 - Bic Ball Pen Pack of 12, 3M Magic Tape, Marbig Notes Pack of 12, Marbig Correction Tape for 1c with your next order of $50 or more