In the early 1900s, cigarettes were living their golden years – something which millions of lungs regretted. But you can't charge the smoking industry of not being creative. Back in the day, manufactures used to insert stiffening cards into their paper cigarette packs, to make them sturdier and last more; not long after that, companies started printing all sorts of quotes, trivia, artwork, and… life hacks.

20世纪初期，香烟正处于黄金年代，上百万人为他们的肺感到懊悔。但你不能控告香烟行业没有创造性。当时，厂商习惯在香烟纸包装里插入硬卡片，使包装更坚固、使用时间更长。不久之后，各个公司开始在硬卡片上印刷各种语录、冷知识、插图……以及生活小窍门。

Here are some of our favorites:

这里是我们最喜欢的一些小窍门：

How to increase lung power

如何增加肺活量

Stand erect on the balls of your feet and with the head held well back. Then inhale deeply until the lungs are fully inflated, gradually exhale, allowing the chest to sink first, followed by the lungs. Repeat exercise several times both morning and evening.

前脚掌着地直立站好，头部后仰。然后吸气，直到肺部充满空气，之后慢慢呼气，首先让胸部下沉，然后是肺部。早上和晚上都重复练习几次。

How to extract a splinter

如何取出碎片

A splinter embedded in the hand is very often painful to extract. A good way to accomplish this is to fill a wide-mouthed bottle with hot water nearly to the brim, and press affected part of hand tightly against mouth of the bottle. The suction will pull down the flesh, and steam will soon draw out the splinter.

取出嵌入手中的碎片往往是很痛苦的。为了顺利取出碎片，一种方法就是向一个广口瓶中注入热水直至水位差不多要达到瓶口边缘，然后把手上受伤的部位紧紧压在瓶口处。吸力会拉扯肌肉，很快蒸汽就会把碎片拔出来。

How to make a fire extinguisher

如何制作灭火器

Dissolve one pound of salt and half a pound of ammoniac in two quarts of water and bottle the liquor in thin glass bottles holding about a quart each. Should a fire break out, dash one or more of the bottles into the flames and any serious outbreak will probably be averted.

将一磅盐、半磅氨树胶溶解在两夸脱（液量单位，在美国1夸脱等于 0.95 升）水中，然后把液体装入薄玻璃瓶中，每瓶液体约1夸脱。如果突然着火了，将一个或多个瓶子猛掷进火中，这样可能就会避免任何严重火灾爆发。

How to clean bottles

如何清洗瓶子

To clean the interior of bottles, a little sand and water should be well shaken inside of them. This will have the effect of cleansing every part, and the bottles can then be washed and dried.

要清洗瓶子内部，可以往瓶子里装入少量沙子和水，然后摇匀。这样就可以清洗瓶子的每一部分，然后就可以冲洗、擦干了。

How To Carry a Heavy Jug

如何搬运沉重的罐子

The correct way to hold the jug is shown in the right-hand sketch. This prevents the weight from pulling the jug down and so spilling what it contains, as it is likely to happen if carried the other way.

右侧的图是握住罐子的正确方法。这样可以防止罐子太重而倾斜致使罐中物品溢出，而按另一种方式拿可能就会使罐中的东西溢出。

How to remedy loose shoes

如何修复松掉的鞋子

A pair of loose shoes can be made to fit comfortably by fixing (with glue) a piece of velvet or velveteen inside the heel. Care must be taken to see that no wrinkles are left in the velvet.

（用胶水）把一片天鹅绒或棉绒粘在脚后跟内侧，就可以让一双松掉的鞋子变得合脚又舒适。注意一定不要让天鹅绒起皱。

When Boiling Cracked Eggs

如何煮有裂缝的鸡蛋

To boil cracked eggs as satisfactorily as though they were undamaged, a little vinegar should be added to the water. If this is done, it will be found that none of the contents boil out.

如果想要满意地煮熟有裂缝的鸡蛋，就像它们完好无损一般，那么可以在水里加一点醋。这样做的话，你就会发现鸡蛋一个都没有煮破。

How To Remove a Tight Ring from the Finger

如何摘下手指上绷紧的戒指

To remove a tight ring from the finger without pain or trouble, the finger should be first well lathered in soap. It will then be found that unless the joints are swollen, the ring can be easily taken off.

要想毫无痛苦、毫无麻烦地摘下手指上绷紧的戒指，首先要在手指上涂好肥皂。接着你就会发现除非关节肿胀，否则戒指很容易就摘下来了。