Starbucks Coffee Discounted

This week CVS is offering a great price on Starbucks coffee with even more savings for buying more.  Here's the breakdown.  Buy 1 Starbucks coffee and pay $6.99 or buy three for $20.97 and receive $5 ECB, like paying $15.97 for all three or $5.32 each, no coupon needed.

Summary: 
Buy 3 Starbucks coffee for $20.97
- $5 ECB to be used on your next purchase = like paying $5.32 apiece