If you join a convenience store, you don't need to buy it yourself at all. The company will deliver goods to your door regularly. If you open your own convenience store, you can purchase in the local wholesale market. You can also order directly from the owners of some small workshops. Many other manufacturers contact you directly. Because they need to deliver goods, what they need most is a terminal sales network like a convenience store. Therefore, even if you sit at home, there will be a steady supply of goods for you.