Staples lets you rack up points, too, but only on certain items--luckily, the most expensive ones, like printer toner and paper.

FORBES: Magazine Article

While Staples' 10% discounts on printer paper and toner made it a close race, Office Depot's low prices and 5% overall discount pushed their prices below the other retailers.

FORBES: A Penny Pincher's Guide To Office Supplies

To find out which one offered the best value, we compared prices for a common basket of goods, including printer paper, toner cartridges, toilet paper, garbage bags, file folders, envelopes and pens.

FORBES: A Penny Pincher's Guide To Office Supplies