First, you must take the key when you go out. It is the least likely to make mistakes to keep the key in the same position all the time. On the contrary, even if you remember it firmly, you may forget to take it once you are in a hurry.
Second, remember to draw the curtains at night. If you suddenly find someone looking at you in the evening, even if they don't want to, it will really make you feel frightened.
Third, sanitation is very important, especially food waste, which must be taken away in time, otherwise once it tastes, it will really be very heavy.
Fourth, the more a person has to have a sense of time, especially when playing mobile phones, if he indulges himself a little, he may play late.
Fifthly, it is very important to put some food in the room.
Sixth, keep all your things in the range of one suitcase and one bag, it will be easier to leave.