Milk powder, cereal, biscuits, bread and so on, but I like to eat black sesame paste, so I will bring black sesame paste in the office, so I will inevitably prepare a bowl, a spoon and a pair of chopsticks. But milk powder and cereal are what I often eat, and this only needs to be boiled in water. If you really don't have time, you will choose to eat some soda cookies or bagged buns.