Change: In 1977, test-markets failed to show consumer interest. However in 1979, 3M implemented a massive consumer sampling strategy, and the Post-it note took off. Art Fry, co-inventor of 3M's Post-it Notes, often tells the story of how the product tested horribly and almost got abandoned in the early days (1977-1979)   View changes from previous version. (Word count: 477)

Change: A short time later, Fry realized his invention’s full potential, when he wrote a note on one of his new "bookmarks" and attached it to   View changes from previous version. (Word count: 473)