Daily Commerce practice
Short daily practice helps reveal weak concepts before they accumulate. The goal is not to spend hours on random questions; it is to keep important definitions, relationships and numerical steps active in memory between larger revision sessions.
A simple routine is to attempt the daily questions without notes, check the explanation, and write down only the concepts you could not justify confidently. If a mistake comes from forgetting a definition, revise that definition with an example. If it comes from a numerical step, redo the calculation from the beginning rather than memorising the final answer. If the same topic appears weak for several days, move from daily practice to the full chapter resource.
Use the right level of practice
Daily questions are best for consistency. Chapter practice is better when one topic needs focused work, while a timed test is useful only after several chapters have been revised. This progression keeps practice connected to learning instead of turning it into repeated guessing.