Public areas, such as parks, often have litter bins placed to improve the social environment by encouraging people not to litter. Such bins in outdoor locations or other busy public areas are usually mounted to the ground or wall to discourage theft, and reduce vandalism, and to improve their appearance are sometimes deliberately artistic or cute. In dense urban areas, trash is stored underground below the receptacle. Some trash cans have plastic bags to help contain liquids.
The term "garbage can" is also used for a model of decision making, the "Garbage Can Model" of decision making. It is concerned with cases of decision making in great aggregate uncertainty which can cause decisions to arise that from a distant point of view might seem irrational.A "trash can" metaphor is often used in computer operating system desktop environments as a place files can be moved for deletion.In a workplace setting, a bin may be euphemistically called "the circular file", "the round file" or "the janitor's file". Whereas useful documents are filed in a filing cabinet, which is rectangular, junk mail and other worthless items are "filed" in the bin, which is often round.The term "waste basket" is occasionally used in taxonomy to refer to groupings that are based on some non-genetic criterion (e.g., the proposed order Insectivora is considered a "wastebasket taxon", as it groups small mammals whose chief link is that they eat insects), and the Nilo-Saharan language family is sometimes called "Greenberg's wastebasket", as it was a grouping made by him to fit the languages of Africa that did not fall into the other groups, Afroasiatic, Niger–Congo, and Khoisan.
A waste container is a container for temporarily storing waste, and is usually made out of metal or plastic. Some common terms are dustbin, garbage can, and trash can. The words "rubbish", "basket" and "bin" are more common in British English usage; "trash" and "can" are more common in American English usage. "Garbage" may refer to food waste specifically (when distinguished from "trash") or to municipal solid waste in general. In 1875, the first household rubbish bins were introduced in Britain to create a regulated system of collection