Allocate 50% of your income towards necessary expenses, 30% towards discretionary spending, and 20% towards saving and debt repayment. If you can continue to save 20% now while you do not have debt, you will be much better off maintaining a 20% saving plan throughout your working life. For example, if you earn $100 per week, allocate $50 for necessities, $30 for fun, and save $20.