如果某双鞋子或某套刀具可以永不损坏,你是不是觉得能用一辈子的东西花多少钱去买都值得?或者,即使它们不是永不破损,但它们的制造商会免费提供维修服务或是直接更换新的给你,是不是几乎等于可以用一辈子了?快来看看哪些日常生活上的产品终身保修! It's worth it to splurge on a new pair of shoes or a set of good knives if you know they'll last forever—or if they don't, that their maker will repair or replace them for free. Here's a round-up of four useful everyday items that come with a manufacturer's lifetime guarantee.