The big advantage of cash envelopes is that, if you budget properly, you will always have the cash to pay a bill when it comes due. No more worrying about where the money will come from, be it for mortgage or rent, utilities, car payments, repairs, taxes, discretionary spending, etc.
Mistake _ Not Tracking Your Spending and Expenses _ It is impossible to keep to your monthly budget if you fail to track your spending. It is recommended that you fill out both a weekly expenses report and a monthly expense record worksheet to track your spending and monthly expenses. It you don't track you spending you will not know what areas of your budget you need to adjust for next month.