An urawaza (裏技, meaning "secret trick")[1] is a quirky, ingenious technique that optimizes an everyday activity like cleaning up spills, preventing odors, or folding laundry.
[1] In the aftermath of World War II, urawaza helped the population make best use of scarce resources, like using alcohol instead of more expensive household solvents for cleaning.
[1][2] Lifestyle urawaza were popularized in the Japanese television series Ito-ke no Shokutaku (The Ito Family Dinner Table), incorporating many viewer-submitted tips.
[1] The term itself became globally popularized when video gamers in the 1980s began sharing their game-related urawaza online.
[1] Modern urawaza include chilling a cellphone to increase its battery life,[2] keeping sugar dry by adding grains of uncooked rice,[2] and practicing one's bowling throw with an iron (pointing to a specific target) to develop aim before getting used to the weight of an actual ball.