Earl Tupper invented the container’s seal, but it was a savvy, convention-defying entrepreneur who got the product line into the homes of housewives
Enter Brownie Wise, a rep for a range of cleaning utensils sold at home parties in the Dearborn, Michigan Area. When a friend gave her a set of Tupperware bowls, Wise immediately saw the potential for selling them at parties. Women needed to see someone demonstrate the seal lock.
Wise joined the company and by 1950 her team were selling more Tupperware than regular stores. Tupper saw her success and made her his vice president and sales manager. From then on, Tupperware was sold exclusively at parties.