It's dangerous to shop bargains one doesn't need 这篇英语作文如何写？

Many people like to buy the bargains because it is much cheaper than before, but if you don't really need it ,do you think of that it is a terrible waste of money ? So,i want to warn broad customer，in sale busy season, want to hold to rational consumption, goods compares 3, do not want credulous conduct propaganda, do not pursue cheap, have an insatiable desire for low.