Where to donate, recycle, and sell your castoffs so they do some good.
By Katie Arnold-Ratliff, Meredith Bryan and Arianna Davis
Illustration: Daniel Horowitz
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Eco-friendly product purveyor TerraCycle turns everything from dried-up pens and highlighters to three-ring binders and tape dispensers into like-new products such as flowerpots, park benches and plastic lumber.