Everything back-to-school is on sale right now, including loss leader items like a dozen pens for a $1, and a dozen pencils for 50 cents. I use the coupons and the sale fliers to get the best possible deal on this stuff, but I also buy at least one extra of everything while it is so inexpensive, because all parents know that stuff is going to break, get lost, run dry, get sharpened down to a nub, or simply run out long before the school year is over. This way, I am not running out and paying full price to replace items.