The United States contains 2.35 billion square-feet of self-storage space. This equates to roughly 7.4 square feet of space for every person in the country. Or, as Ira Glass puts it: “All of us could stand inside self-storage at the same time.”

Related Fact: According to U-Haul’s website: “The annual mileage of North American U-Haul trucks, trailers and tow dollies would move a family to the moon and back more than 20 times per day, every day of the year.”

[Sources: This American Life and U-Haul. See previous Numbers of the Day here.]