Saving money is a very simple matter. It's hard to hold on. Twenty-one days to form a good habit. But saving money is something to do every month, treat it as your hobby. At the beginning, it can be regarded as a task to do, and then it gradually becomes a habit. The advantage of saving money is that when you are in a hurry to use the money, you can take it out without stress. No need to borrow money from friends and family.