Use a budgeting app to track your spending automatically, then review its categories to spot regular costs you could reduce or cancel. Set realistic weekly limits for flexible spending and create separate savings goals, such as an emergency fund or annual bills. Turn on alerts before you reach a limit, but leave some room for unexpected expenses so the budget remains manageable. Check the app’s privacy, security and data-sharing information, and remember that it is a planning tool rather than a guarantee that you will save money.