CHOW Associate Editor Roxanne Webber regenerates her green onions, creating an endless loop of onion tops to use in her cooking-like in this recipe for Sweet Corn with Scallions. We've got more green tips that will put a little ecofriendly spring in your step: Employ your leftover coffee grounds as an exfoliant. Learn how to extend the use of veggie scraps and a chicken carcass. Plus, how to do your dishes and clean your counters the environmental way.