Read previewI worked as a Starbucks barista for nearly a year, and I became extremely familiar with just how expensive the popular coffee chain is. As a stingy spender, I made several mental notes on ways customers would unnecessarily waste their money during my shifts. If I find irresistible merchandise, I'll take advantage of the Starbucks rewards program. If you're looking for a caffeine fix, stop wasting your money on hot venti lattesGrande and venti lattes have the same amount of espresso. Stop paying for bottled waterI've always been baffled by people who insist on buying bottled water from Starbucks.

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Persons: —, spender, Nadir Keklik, Michael Probst, It's, they're, Ramin Talaie Organizations: Service, Business, AP, Americano, Getty, Starbucks