The garage and the basement are full. You can’t stand that old entertainment center. You really want a new sofa but don’t want to pay new-furniture prices. In decades past, you might have put up a notice on the bulletin board at your local coffee shop or checked the newspaper classifieds. But these days, the top destination for buying and selling households goods (and some other things) is Craigslist, a global online classified website started in San Francisco in 1995. In addition to buying and selling furniture and households items, denizens of Craigslist buy and sell cars and houses, find new homes for pets, rent apartments, advertise events and services and participate in discussions. You can even look for jobs or dates. More than 60 million Americans use Craigslist every month, according to the service, and most listings are free. For the skinny on how to buy and sell household goods on the cheap, visit our sister site, Living on the Cheap.