What is “anything but a backpack day”?

“Anything but a backpack day” is a day when students are encouraged to leave their backpacks at home and bring their school supplies in a different type of container, such as a reusable grocery bag, a tote bag, or a small suitcase. This day is often organized by schools to promote environmental awareness and reduce the amount of waste produced by disposable backpacks. It also allows students to express their creativity and individuality by choosing a unique way to carry their school supplies.