Various third-party sellers via Rakuten take an extra 20% off a selection of office supplies and furniture via coupon code "OFFICE20". Plus, most items qualify for free shipping. After coupon, that renders some of the lowest prices we've seen on many eligible items. Some exclusions apply. A couple of best bets, with prices after coupon: Note: You must be signed in to your account to use the code. The coupon can be used once per Rakuten account within a single transaction with one merchant, and a $40 maximum discount applies.