But then a colleague at his Atlanta investment company, Convex Group, passed him a plastic lid with a coupon attached to it in August 2002.

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Compare an innovation as incredibly mundane as a new plastic lid for paint cans with a whiz-bang, new computer chip.

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The boxes are clear plastic and have an opaque lid with a slot in it and four locks.

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Anthony Missano, an executive at Sbarro, was looking for a way to attract teens to the pizza-and-pasta chain when a soft drink sales rep handed him a fountain drink with a mini music CD tucked inside the plastic lid.

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Ultimately, then, the difference between the two comes down to build quality: the Fit E is made of plastic, whereas the Fit has a thinner aluminum chassis, with the fans hidden above the keyboard, and a lid that covers the hinge.

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