Add two of these 24ct Starbucks K-Cups Boxes to your cart for $16.99 each and apply code 66075 at Staples.com to get the second box for free. Even better, there's no limit to how many times you can use this buy one, get one free offer. So you can stock up! Shipping is $9.95 for orders under $35, so either purchase enough to meet the shipping threshold or check to see if you can opt for free in-store pickup. At $0.35 per K-Cup, this is the lowest price we could find and the second-lowest price we've seen all year. There are three flavors available, and you can mix and match. Sales tax is charged in most states.