Amazon has a B1G1 deal on USDA Organic Sample Pack Single-Serve Cups, 72 ct. of Single Serve Capsules for Keurig K-Cup Brewers, Fresh Roasted Coffee LLC.
There's a B1G1 promotion on this item only (not their other varieties). Just add 2 to your cart, click Proceed to Checkout, and you'll see one is free.
4-star rating. HOWEVER, reviews are mixed on whether all varieties are compatible with Keurig 2.0 brewers (which check for authenticity).
$0.21/count, and you can brag that you bought a gross of something