The worst mistake you can make in an entryway is ignoring the need for storage. Even if you have an entryway mudroom in another part of the house where coats and shoes go, inevitably, your main entryway will become cluttered with everything from mail to school bags if you don't provide a home for them. A simple chest of drawers or tall built-in entryway closet can help you keep your space neat- and welcoming-looking.