How to “Splurge” wisely without busting your budget

Please provide your best tips for splurging or treating yourself without going over budget or negatively impacting other financial goals. How can consumers wisely budget little (or big) luxuries into their budgets? Why is it important to include these non-necessities in a budget?Requirements: Looking for tips from personal finance or budgeting experts, shopping experts, or personal anecdotes about how you budget for luxuries. Include your name, organization or company (with URL), and title as you’d like to be attributed.