I vote shelves- but another idea is to do black and white photo array. This would be fun and contemporary and adding a conversation piece to the room. Use photos you have or you can find some great ones at Homegoods or Aaron brothers.

You have all the reasons to redo the house, its very lifeless and looks worn out. I feel creating a separation will terminate the spaciousness of the room. Adding colours will surely help, Since you have a tan color sofa,I suggest grey, white or light blue color on one of the walls. Add some art works of the color you chose for the wall. This room needs some fillers like , books, throws, candle stands tall and lean. YES DON FORGET 1. Mount the tv on the wall make some space on the floor and Fix a large size mirror ( Wooden Frame if you can afford).

Well for windows and doors you'd use gloss or satin finish paint in white and it shouldn't really be different to your white wall paint in colour , if you used the same shade of white from the same company.

I would put the TV on the wall you have the sofa on now and use the larger wall for your sofa. Right now it looks jammed into the corner. It should be fairly easy for the "cable guy" to move your cable outlet to theother wall if you don't have one there already. Or an entertainment unit would be better for your TV set-up on that wall.