Ariana Grande worked hard to alter her voice for her role as Glinda, opposite Cynthia Erivo’s Elphaba, in Wicked. Her reason for the change is rooted in a magical devotion to honor the Broadway show.

Other dangerous items that should not be stored in cardboard are lithium batteries and spray paint, which could explode or start a fire. “Once again, a cardboard box may not protect the item from ...