Selling your stuff at a yard sale could be a losing proposition.
Stories of valuable finds abound, like the rare Chinese bowl bought at a tag sale for $3 and auctioned off last year for $2.225 million. Sure, it's unlikely your old junk is worth quite that much. But it could be more valuable than typical yard sale profits imply. (The average item is priced at just 85 cents, according to Signs.com, and 42 percent of yard-sale shoppers say they expect to negotiate.)