If you don't allow for a certain amount of mad money for you and your spouse soon resentment will start to set in. Each party will get very frustrated about having to stick to such a strict budget and not having any money for fun. Likewise, even if some money is allocated in the budget for fun, one of the partners may get tired of not being able to spend some money how he or she would like. This special money even allows you to save some money for a larger purchase you may want to make. _ Even if money is extremely tight in your monthly budget, it is highly recommend to allow each spouse a small amount of mad money to help make the budget work. Everyone is more willing to save and track their spending if they are allowed a certain amount of mad money to spend how they wish.
Mistake _ Not Planning for Upcoming Expenses _ When you are creating a monthly budget it is always helpful to save a certain amount of money for a given category even if you don't have that expense for the given month. For example, let's say you pay your car insurance every six month. It is important to take your payment and divide it by six. Then, each month you will want to save that amount so you have the insurance payment when it comes due instead of trying to come up with the whole amount in one given month. If you can do this for as many periodic expenses as possible, it will be easier to have a balanced budget each month.