The 'Starbucks Cup-Size Scam' Video Is an Old Internet Prank

It is apparently worth repeating: Different sized cups hold different amounts of liquid.
All sizes of Starbucks' paper cups hold the same amount of liquid.

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The 'Starbucks Cup-Size Scam' Video Is an Old Internet Prank

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Starbucks cup size: The scam that wasn't

Starbucks cup size: The scam that wasn't

Savings-Smart People Are Calling Starbucks' Cup Sizes A Scam For Holding The Same Amount, So I Tested Them Myself And, Sigh, They Don't, grande starbucks cup

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Starbucks Scam or life hack?