1. The height of office supplies on both sides of the desk shall not exceed the height of the user after sitting down. If it exceeds the user's head, it will make the user unable to stretch, suggesting that the user will never be able to stand in front of others, so this arrangement is a taboo for desk supplies.

2. The desktop of the whole table should be kept clean and tidy at all times. After finishing every job or reading and writing, you should take pains to clean up the desktop, put the utensils in order, clean up the garbage and waste paper and put them in the trash can.