One Classroom Policy that Haven't Existed Yet

Suggest one classroom policy that haven't existed yet which you think will help both teachers and students in the learning process.

I think one policy that would help both teachers and students in learning process is "Never Let a Student ENTER into a classroom if he/she were not able to Bring a Book that he/she going to use during the Lecture". For me, a student must bring his/her source of knowledge so that he/she will be able to concentrate during the lecture and the learner will not disturb another learner just because of borrowing book to his/her classmate. By this you can share your very own idea about the said topic that your teacher is discussing or lecturing.