In our everyday lives, we encounter things like doors, light switches, faucets, and stoves that are expected to be simple and straightforward. However, sometimes these items unexpectedly become complex and confusing. In this article, we will delve into the significance of transparent and intuitive design, emphasizing its effects on enhancing usability and user comfort. One prominent example of this issue is doors. Typically, we expect a door to open or close clearly. However, in some cases, poor door designs lead to confusion and unnecessary difficulties for users. For instance, doors that should be pulled but are instead pushed, or vice versa. Donald Norman, in his book "The Design of Everyday Things," highlights the importance of "discoverability" and "understanding" in design. In other words, products should be designed in a way that users can easily understand their functionality and how to use them, without the need for instructions or personal guidance. Transparent and intuitive designs truly facilitate the interaction between the user and the product, informing users about how to engage with the product and what actions to perform. For instance, in door designs, the use of understandable indicators such as vertical plates or visible supports enables users to easily determine which direction to push or pull the door. Similarly, in the design of household appliances like washing machines or gas stoves, the use of simple and understandable user interfaces, buttons, and indicators helps users to use them effortlessly and without complications. Ultimately, transparent and intuitive design, as a fundamental principle in product and service design, should be carefully observed. These designs improve user experience, reduce resource wastage, and reassure users that the products or services they are using are easy and properly usable. Therefore, the importance of such designs in modern society is incredibly high and should not be overlooked.