Black Friday is behind us, but the holiday shopping season continues to build. People jamming the malls are rediscovering one of the travails of the season — finding a place to park. When the mall spaces are filled, many turn to commercial garages. One innovative solution opened this week in the Nation’s Capital in 1951. The Park-O-Mat garage was completely automated, and parked 72 cars in 18 levels of space just 25 by 40 feet. Without entering customers’ cars, the attendant would use two elevators to park or retrieve the vehicles. This took less than a minute to accomplish. Today, in a nation with some 254 million motor vehicles, there are more than 12,500 parking facilities across the country, generating $7.2 billion in revenue annually. You can find more facts about America from the U.S. Census Bureau online at <http://www.census.gov>.