He insisted that I should get a fresh cup with a lid and straw and all just for water. I do this (literally) a thousand times a year at various Starbucks (wate

He insisted that I should get a fresh cup with a lid and straw and all just for water. I do this (literally) a thousand times a year at various Starbucks (water, ice, icewater, more hot water for tea, etc.). I'll occasionally be offered a new cup if the existing one is marginal, but not once has a reuse been denied me. Pro tip: they're selling their annual January tumbler which includes free drip coffee or tea for the entire month of January, for $40. It's a nice stainless steel cup, too. And for any cup, you get $.10 "own cup" discount.