For Prime members only, Amazon offers a K-Cup Coffee Sample Box bundled with a $7.99 Amazon Credit for $7.99 with free shipping. (The credit must be used towards purchases of similar coffee products.) Assuming you'll use the credit, that makes the sample box essentially free, and it's the best such offer we've seen this year from Amazon. Brands include Peet's Coffee, Caribou Coffee, Newman's Own, The Original Donut Shop, Brooklyn Bean Roastery, and Green Mountain Coffee.

Note: This item usually ships within one to two weeks.