All good things must come to an end, and so it is with the green stickers that give plug-in hybrid drivers access to California's freeway carpool lanes with just one person in the car. A total of ...

USDA organic sticker on a gallon of milk. - ZikG/Shutterstock If you've ever picked up an organic apple and wondered why it costs double the price (or more) of its conventional counterpart, you're not ...