Habit of reading periodicals of one's mother tongue.In most of the languages several periodicals are published regularly. It may be a weekly, bi-weekly, monthly, bi-monthly, etc. How many of us find time to go through them? If so will they be periodicals in one's mother tongue or others, or both.
Actually, these periodicals are always useful. It takes us to different subjects and knowledge data. Sometimes there may be wrong information there, still it helps us to know that such a thing exists.
I am used to read half a dozen or more such publications. I just skip through an equal or more number of these types of periodicals. I find it very useful.