How can I create a simple budget plan for my monthly expenses? Your response should contain at least 3 placeholders represented by square brackets, such as [monthly_income]. Highlight at least 2 sections in your answer with markdown, i.e., *highlighted section*. Your answer must contain a title, wrapped in double angular brackets, such as <<Creating a Simple Budget Plan>>. Finish your response with this exact phrase [ender]. No other words should follow this phrase.

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