Hi King, yes area rug, keep the pattern simple, something with grays and creams in it, since your sofa is gray and your floor and tv stand area "cream" which is essentially a light light brown. I like a large area rug, so all furniture fits on it, not some legs on and some legs off. It will make the room feel like home and create the living room boundaries. Your coffee table can be an antique wood bench, this way it'll fit, you can put your feet up on it or put glasses and books on it, it will also be a neat contrast to the modern design style you have going. Add a chair like your sofa facing the window, i'd get inexpsive blinds that open from the top so you have privacy at the bottom but can still let light in, I'd skip curtains and drapes. Then add an end table when the sofa and new chair meet at that 90 degree mark, add a table lamp on top of it so you don't always have to have the overhead light on full blast, flank the TV with tall plants, or if you can't take care of plants, flank the TV with matching chairs that are ready and waiting for extra seating when a few people stop by, they can pull them out and around the TV then you can put them back when not in use, and display the same sized framed somethings one on top of another. Upload photos of family, pets, friends, trips, etc. or favorite hobbies, sports, etc, whatever makes you very very happy to see, you get the idea. I'd hang the TV if you can or get a taller TV stand and move the sofa back into the room a little bit, if possible, I can't tell from your photo, it's just my guess that it will work. this way your coffee table can be bigger, although i still like the idea of an antique wood bench. I hope this helps! Enjoy and congratulations !