If you have not joined the Starbucks Rewards program now there is a very nice incentive for you to join. Sign up for this FREE rewards program and get a $5 Starbucks gift card. This offer is valid for new members only and it is good through 3/14.
If you visit Starbucks often it is good to join as you get perks after you accumulate visits. You also get a birthday freebie. Read more about this program here.