i think that a short bookcase along the entryway (but with the books facing the entry, and the couch abutted to the non-book side) would be a fabulous way to separate the inglenook from the rest of the living room and also keep the couch from migrating.
Break down a wall between kitchen and living areas but keep the load-bearing posts and turn it into an awesome storage island. This can really save the cost of having to do major construction for the load bearing wall.
9 Beautiful & Functional Ways to Improve an Exisiting Open Doorway
DIY room dividers are perfect way to maximize a small space, and also are great as decorating focus point. They offer privacy, boundaries, and aesthetic elements all without altering structural components of a space.