One helpful tip per day:)
(The English version follows)
Fernando Gros 介绍了自己为何使用纸笔来安排自己的日程。一方面，纸笔可以随时记录，比使用手机方便很多；另一方面，不少日程本每天一页纸，所以需要在这有限的空间内安排日程。
Fernando Gros describes why he uses pen and paper to organize his schedule. On the one hand, pen and paper can be used at any time to record, which is much more convenient than using a cell phone; on the other hand, many schedule books are one page per day, so you need to organize your schedule in this limited space.