You may wish to add methods that have worked for you, or try to think of new ones.
Many people decide to save what's left over after expenses.
Wise savers pay themselves first each month. Somehow, almost miraculously, all expenses are met, and the money isn't missed. Some of us have tried to accumulate money without setting it aside, but it never builds up. Money set aside builds up quickly, because it's not available to us. It's the regular, steady, ongoing, incremental additions that add up.