photo wall using a picture ledge which would keep me from a) obsessing over perfecting the distances between pictures and b) putting a jillion nail holes in the wall. @Holly Erwin. this would be great over your couch!
Settees and sofas will add instant life to a living room or shared space. Go for ones with lots of prints and colors. These kid-friendly furniture styles will add instant life to your home (not to mention hours of family relaxation).