A clear, logically structured model is easier to work with, understand, and verify. Use separate tabs for different parts of the model, such as for assumptions, calculations, outputs, and organize them appropriately. Ensure that all of your calculations and formulas have been checked for consistency and errors. Functions like SUMIF, INDEX, MATCH, and IFERROR make it possible to create models that are dynamic and easily adaptable. Where appropriate, use cell references rather than hard-coding values: this will make your model more adaptable.