Although the much-satirized image of a house overflowing with National Geographics and infested with cats may make us chuckle, the reality of compulsive hoarding is no laughing matter. The most common reason for evictions in the US and a significant risk factor for fatal house fires, compulsive hoarding is a treatable condition related to obsessive-compulsive disorder. It is characterized by the acquisition of possessions that have little or no value,...