Which packaging innovation was specifically developed during WWII for military use before becoming a mainstream consumer product packaging solution?

Packaging design has evolved dramatically over the decades, with certain innovations completely transforming how products reach consumers. Some packaging breakthroughs have revolutionized entire industries by extending shelf life, reducing environmental impact, or creating iconic brand experiences. Test your knowledge of these game-changing packaging innovations that shaped product history!

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Aerosol spray cans
Tetrapak cartons
Vacuum-sealed plastic packaging
Child-resistant pill bottles