Simple rules of thumb

Simple rules of thumb are practical, general guidelines that help people make quick decisions without extensive analysis. They are based on experience or common sense rather than strict formulas or detailed data. These rules provide an easy way to approach everyday problems efficiently, like estimating a tip (% of bill) or determining how much paint to buy for a room. While not perfect for every situation, they serve as useful benchmarks for guidance and decision-making in various aspects of life and work.