Views on spending tomorrow's money

Money is a useful tool in modern society. We use it ,save it and plan it. We almost can do nothing without it. It very limit to most people, so we should plan it for having a good living especially for our university students.
Many time we use money under planing. Sometimes we can save a little money. But we may spend tomorrow's money for some different reasons. But I think these reasons can be divided into two kinds. One is just using money without planing or just for their vanity heart and some unuseful things. The other is for some good reasons such as they are ill, they use money to see the doctor; they want to buy some things which are very cheap now and very dear when they save enough money or help some good friend who are in problem now and so on.
My views on spending tomorrow's money is that the second kind is ok, it's for the good reasons. It's used on the useful and meaningful things not on some something just for saticfing for the vanity heart.
I think we'd better spend money under planing. But sometimes some unplaning things happen to us, we think it very valueble and spend the tomorrow's money on them. If the things are really meaningful or value to do it, we can spend tomorrow's money on them. In a word, we'd better spend money under planing.Sometimes we can spend tomorrow's money for some meaningful or valueble things.