Which invention revolutionized product design by allowing consumers to use nearly 100% of the product inside, eliminating the waste of leaving 15-20% behind in traditional packaging?

In the world of consumer product design, packaging innovations have not only improved user experience but also addressed significant environmental concerns. One particular breakthrough revolutionized the way we dispense and use everyday products, eliminating waste and improving efficiency. Test your knowledge about this game-changing invention that transformed product design and sustainability.

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The LiquiGlide non-stick coating (2012)
The Toothpaste Tube Roller (1983)
The Pump Dispenser Mechanism (1976)
The Airless Vacuum Container (1995)