When I was young, I usually dream of holding a good wallet.. Until now, my dream never come true, because when I stood at the conspicuous shopwindow, looking at the unacceptable price, I was awkward. It is almost my monthly pay so that I can't afford it. Then I said to myself: I must earn more money to get the wallet and to make my dream come true. But sometimes I think it's no need to buy it in that high price. These two ideas puzzled me for a long time, and how to solve it?