Through 10/20, save $15 off a $50 purchase with code 86069 at Staples.com. A best bet is to get four boxes of 24ct Green Mountain K-Cups for $12.99 each, which drops your total from $51.96 to $36.96 after the code. Plus, Staples Rewards Members get free shipping, which works out to $0.39 per k-cup shipped. In-store pickup is also free. This is the lowest price we could find for this quantity by $23. You can mix & match flavors and brands and still get this price. Other flavors can be found here. Sales tax is charged in most states.