Amazon.com offers two Grove Square Coffee K-Cups 24-Packs
(48 K-Cups in all) for $17.54. Order via Subscribe & Save and the bundle drops to $14.91
with free shipping
. That's $0.31 each and the lowest total price we've seen for this coffee. K-Cups are used in Keurig-brand coffee systems. Update
: A reader notes that this particular type of coffee is soluble, or instant.
Of note, be sure to cancel "Subscribe & Save" after your order ships or else you'll be billed for subsequent shipments.