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.
A personal or household budget is an itemized list of expected income and expenses that helps you to plan for how your money will be spent or saved as well as track your actual spending habits. Though the word budget has taken on a more negative connotation over the years invoking an image of pinching pennies or limited spending, a budget is really just a tool_and a great tool at that_to gain better and more accurate insight into your spending habits.