Update: This offer is sold out. :(
Nice! Get a $10 Starbucks eGift gift card for only $5! (Limit one per account.) You have to purchase the deal by Saturday night (3/22), though I'm guessing it might sell out before then. Look for the light yellow bar, near the top, and click on it. Here's a mini screen shot for you.
You will need to ACTIVATE your voucher, after you receive it, by 9/30/2013. Then, it will never expire! They will give you directions. (If you can't find them, they're in the FAQ.)