You might spend more on "wants" than you think. A threadbare minimum of warm clothing is a need. Anything beyond that, such as shopping for clothes at the mall rather than at a discount outlet, qualifies as a want. Yes, the rules are tricky, but if you think about it, they make sense.
The 50ቺተ Rule of Thumb for Budgeting. You've reviewed your spending and created a budget, and now you know exactly how much you spend on your home, your car, discretionary spending, and how much you divert to your retirement accounts. That's all good, but what about your other savings, such as for an emergency? How does your financial allocation compare to the amount you should ideally spend and save?