Right now, this 20lb. Case of HammerMill 8.5"x11.5" Copy Plus Copy Paper, originally $50.99, is $29.99 at Staples.com. Plus, it ships for free, making this the lowest price we found on similar products by $20, and the lowest price we have seen on this product in a month! This case includes 5,000 sheets of paper, the paper is acid free, and it has a 4.5/5 star rating from more than 3,000 customer reviews. Sales tax is charged in most states.