What are the things that you always bring and must not forget?

Definitely, a smartphone is what I have to bring, at first. I can be really relieved as it is in my pocket.  Additionally, an earphone is an essential thing which I should bring out. I used to listen to music on the street or public transportations, but nowadays, I usually listen to BBC radio for learning English even though I hardly understand it. Whatever says, this lets me free from noise.  However, there is one more thing which I shouldn’t miss, though I don’t want to bring. It’s a mask. Since February, we can’t have gone anywhere without it in Korea. Otherwise, we are not allowed to enter any facilities where it is possible to be gathered, except for restaurants. I always wear a mask even on a treadmill. There was some news that some people fought about wearing a mask on a bus or a shopping mall .   Luckily, from today, I can get rid of an umbrella on my daily bring list. For over 3 months, there had been frequent rains which I have never experienced in Korea.