Vestibules

The hallway is the face of the house. Closets in the hallway are especially convenient, where they are used as a wardrobe and a mirror, as well as a place to store shoes and outerwear.
However, often the space in the hallway does not allow placing classic cabinets, so closets are useful — they are much more compact, take up less space, but are no less capacious.
In addition, sometimes nothing else fits in a narrow corridor, except for a closet.