Amazon offers the Starbucks Doubleshot Espresso + Cream Coffee Drink 6.5-oz. Can 12-Pack for $16.44. Add it to your cart via Subscribe & Save to drop the price to $15.62 and bag free shipping. That's about a buck under what you could expect to pay at local grocery stores, although we saw it for $6 less in December.
Be sure to cancel Subscribe & Save after your order ships to avoid being billed for subsequent shipments.