Which packaging innovation, introduced in the 1950s, revolutionized retail by enabling self-service shopping and is credited with creating the concept of 'brand management'?

In the world of retail, packaging innovations have dramatically shaped consumer behavior and product marketing. One revolutionary packaging development in the mid-20th century fundamentally transformed how products were sold, stored, and consumed - creating entirely new retail categories and changing shopping habits worldwide. Test your knowledge about this game-changing invention that bridged product design and retail marketing strategy!

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Tetrapak aseptic packaging
Blister packaging
Aerosol spray cans
The plastic shopping bag with printed branding