If you already get drinks daily, here's a quick way to get bonus stars
Offer valid 3/1/18–3/28/18 at participating Starbucks stores. Limit of one Bingo board per customer. Must pay with your registered Starbucks Card or your registered Starbucks Card through the app.
-Make a purchase on four different weekend days (Saturday or Sunday). Collect X bonus stars
-Make a purchase before 12 p.m. and another after 12 p.m. in a single day. Collect X bonus stars
Why X? Because each person get different amount of bonus stars