6. Stick to a list. 严格遵循购物清单。
I've found that after I've decided to buy one thing, I'm far more likely to throw in other impulse items, because I know that I'm committed to going through the hassle of paying。
我发现在决定了要买一件东西后,总容易一时冲动买其它商品,因为我知道不管买多少,付款的繁琐都是免不了的。