Today only, from 3pm local time and for its Rewards members, participating Starbucks locations offers any Grande Teavana, Shaken Iced Tea Infusion, or Grande Starbucks Refreshers handcrafted beverage for $2.50. (Not a member? It's free to sign up.) Simply present the code provided via this link to your barista. That's a savings of at least a buck. Click here to find a location near you.