January is often a month people clear clutter from their homes, making room for new holiday gifts. A popular way to unload unwanted stuff is to sell it online on sites like Facebook Marketplace and Craigslist. However, the Better Business Bureau warns that there is an overpayment scam targeting people selling their goods. In this scam, a buyer will ask for the extra money back. The Better Business Bureau recommends never shipping an item before being paid for it, be wary of offers that are too good to be true and watch out for counterfeit emails.