High score! ! Is there any radical solution to let hotel staff open rooms every day in summer on the grounds that customers forget to bring their room cards?

We can start from two aspects. First, put eye-catching slogans on the door of each room (one side of the room) or other places that everyone must see when going out. Everyone will pay attention to the slogan when they go out, so fewer people forget to bring their room cards. On the other hand, the front desk should ensure that two people work. After all, it is impossible to avoid the phenomenon of forgetting to bring your room card 100%. Just in case, the front desk will leave one person to work. It can be alleviated.