Spray w/Scotchgard fabric protectant (protects against fluids and stains) and drape a nice afghan/throw blanket over the back of it. Buy or make some arm rest covers asap since those seem to get the grungiest first and can easily be removed and thrown in w/laundry. A couple of throw pillows leaned against arms add a little decor as well as arm protection. Most couch seat cushions come w/zippered covers than can be removed and laundered, but you really don't want to do that very often- fabric can shrink and become discolored after washing. Vaccuum under cushions periodically- crazy the stuff that builds up under them! Try to limit food and beverages to dining area as much as reasonably possible. Of course most people enjoy snacks and drinks while watching tv, but better to eat that plate of spaghetti at the kitchen table- lol.