in the early 1940s, supplying milk and eggs quickly and efficiently to driving customers; this utilized a dairy conveyor belt that Harold Willis had invented. Some supermarkets offer drive-through facilities for grocery shopping. In the UK, this service was first announced by Tesco in August 2010. In the United States, Crafty's Drive-Buy Grocery Store in Virginia started offering the service. In 2012, the Dutch chain Albert Heijn introduced a "Pick Up Point" where one can collect groceries bought online. Dairy products are available at a drive-through dairy store (notably the Skinner Dairy shops of North-East Florida or Dairy Barn in Long Island). In the early 1990s, the French Jean Duchaine came up with the idea of using drive-thru for the retail market. The drive-thru was the Pillar of a full concept built with many innovative ideas: walk-thru, dark store, market place, big data, ads... Liquor stores Alcoholic beverages have been sold at a drive-through liquor store (called a "Beer Through", a "Cruise Through", a "Brew Thru" in the U.S. eastern Mid-Atlantic coast, or a "Pony Keg" in certain areas; generally illegal in the Northeast and West) Drive-through medical testing During the COVID-19 pandemic, drive-through testing became a common approach around the world for testing people who were potentially infected with the virus. In 2020, drive-through testing facilities were set up in many countries to test whether passengers were infected with COVID-19 (the first being in South Korea). This approached allowed medical workers to process high volumes of tests quickly while reducing exposure and risk of infection between those being tested by keeping patients isolated in their vehicles. The process typically saw patients present their ID before being swabbed while remaining in their vehicles, before driving off once the test was complete. Their results were then typically shared with them either via text message or via their doctor. Emissions and traffic Emissions In recent years, drive-through restaurants and other drive-through facilities have faced increased scrutiny due to the higher levels of emissions that they create – compared to walk-in equivalents. A 2018 study by QSR Magazine found that the average waiting time at a McDonald's drive-through restaurant in the US took 3 minutes and 15 seconds, with an average of 3.8 cars waiting at any one time. This figure rose to an average of 4 minutes 25 seconds in 2019. If the average motorist avoided idling for just 3 minutes every