There are many things that would qualify for the "Greatest Invention of the Twentieth Century," but I don't think Post-It Notes would normally be one of them. However, today I have come to have a new appreciation for those little yellow sticky pieces of paper. Imagine how disrganized and messey a receptionist's life would be without them. And my life, for that matter. There's even a book about how helpful they are.
You know the scene in Bruce Almighty where he converts the prayers to Post-Its and they fill the room? Well, that is exactly what our computer desk looks like right now, thanks to me trying to organize materials, addresses, and to-do lists for graduate school scholarships. Greatest Innovation Ever.