How to Brighten a Small Room Previous Next3 of 5 3. A mirror is an easy accessory that can help emit and reflect light to make the room look lighter. Mirrors also provide the illusion that the room is bigger, a great bonus! Previous Next3 of 5View Full Post interior designlightingmirrorsmall roomswall decorwindow treatments Previous Post A Charitable Twist to Your Next Yard Sale Next Post Installing and Maintaining an Energy-Efficient Pool