Starbucks is offering free up-size of your drinks from November 1-3. I'm just not sure which drinks fall under this promo. It just so happen I was craving for a "Caramel Frap" since this morning that I decided to buy for myself. The barista told me that since I ordered for Tall, they are giving me the Grande. Heaven! Or if you prefer Grande then they will give you a Venti. Wow! I just don't know if it applies to all branches but I had mine in Greenbelt 1.
Plus they have this survey you can answer online using the Customer Code in your receipt and you get your favorite tall beverage, their treat.