If you want to brighten your entryway, create a “window” using basic bevel-edged mirrors. To start, prime and paint a floating shelf the same color as your walls to give it a seamless built-in effect; then install it three feet off the floor (standard height for a console). Add a grid of mirrors above, leaving about an inch around each to mimic windowpanes. For a flush, bracket-free look, attach the mirrors to the wall with construction adhesive made for mirrors.