Advice for Students: 20 Uses for a Post-it Note - LifeHackThe Post-it Note was more than just a practical tool — it was also a psychological one. Compared to the clunky machines of the 1980s that generated all those documents, it was a vision of high-tech minimalism. Its edges were sharp and square, with no ugly binding, no perforations, no metal rings. Its color, a subtle but attention-getting yellow, was somehow like the color of thought itself, a ligh
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