A skinny table/ledge behind the couch could have a lamp, or a power strip for easy access to outlets, cure decor things/plants, or have more practical uses. This is a DIY pin, but it's got the right idea
20 Great Ways to Make Use Of The Space Behind Couch For Extra Storage And Visual Depth
Reclaimed Wood Couch Arm Table by Reclaimed PA on Scoutmob Shoppe. This reclaimed wood couch arm wrap allows you to rest your drinks, remote, book or laptop on the arm of your sofa. I love the idea of this. So simple.