Which innovative product packaging, first introduced in 1963, revolutionized beverage retail and was initially met with consumer resistance due to its unfamiliar design?

Throughout history, product packaging has evolved dramatically, often in response to societal changes and technological advances. From ancient clay vessels to modern sustainable solutions, packaging has played a crucial role in commerce and product preservation. This trivia question focuses on a pivotal innovation in packaging history that changed retail forever and created a new era of consumer convenience.

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Pull-tab aluminum can
Tetrapak carton
PET plastic bottle
Aerosol spray can