Next time bulk buy at officeworks before the school year since its 50% during that period.
I personally preferred to buy in store as it's satisfying seeing what you're buying given the importance of aesthetics on your enjoyment of using the stationery.
For me it was Officeworks and Kmart.
+1 these guys. Look out for the "Back to School" sales in January every year.Office works. And Big W which is my fav