Here’s one for the compulsive shopper cleaning out his or her closet. The company sells used clothes, and will send you a “Closet Clean Out Bag” to pack up all the threads you’re giving away. All items have to be in good condition (the site has a standards sectionfor what is acceptable). There’s also an earnings calculator, which allows you to estimate how much you could make, depending on the item and its brand. Shirts from Gap or J. Crew will earn you less than $9, while high-fashion labels require special examination from pricing specialists.