ListsListing three things is thought to be more convincing than listing two or four. For example, stating that a city that is "beautiful, friendly and clean" may be more convincing than adding more to the list.
StructureStructuring a story with a distinct beginning, middle and end.
CharactersStories with three primary characters are extremely common.
SlogansSlogans such as "Stop, drop and roll."
Comic TripleComedy based on two characters or things that match and one that doesn't.
PlotPlots based on three events such as a character who is granted three wishes.
|Overview: Rule Of Three|
The theory that audiences prefer story structures and elements that come in three.