Through 4/1 these 48ct Green Mountain K-Cup Packs drops from $27.99 to $19.99-$20.99 depending on the flavor at Staples.com. Shipping is free for Staples Rewards Members or with in-store pickup. This is the lowest price we could find by $4 and works out to as low as $0.42 per k-cup. The Half Caff drops to $19.99 while the Breakfast Blend and Dark Magic drop to $20.99. Sales tax is charged in most states.