相信很多人都有過這樣的經(jīng)歷：需要找一個電話號碼時，你只記得“某段時間內(nèi)我曾經(jīng)頻繁聯(lián)系這個號碼，但現(xiàn)在我忘了”。遺忘是合理的，但總有人或事頻繁要求那些已經(jīng)被我們遺忘的東西，則是很搓火的。

Further, these things we need to know, but do not need to remember, such as less commonly used bus lines, a customer's cell phone number, and occasionally experienced skills in work. When you need these information, if you can find it quickly and accurately, it will be an effective way to improve efficiency.

Of course, this requires you to pay attention to accumulation in peacetime -- and according to the experience of efficiency day, the best way is to set up your own "efficiency index".

The following figure is part of Exia's "efficiency index". You can see that this is a mess.