Start with what blocks the room
Stand in the doorway and notice the three largest visual interruptions. They might be a stack beside the sofa, a chair covered in clothes or heavy accessories across the window. Deal with those before touching the cushions. Put items back where they belong and remove things that do not need to live in this room. A clearer view across the floor or toward the window often changes the room more than a new decorative object would.
Borrow from another room
Try a lamp, small bowl or cushion from elsewhere in the home, one item at a time. Compare the arrangement from your normal seat, not only while standing beside it. Keep the change if it improves both the view and the way you use the room. Do not rob a useful corner just to decorate another one. If the borrowed lamp leaves someone without reading light, choose a different object or return it after the experiment.
Keep one simple arrangement
Choose a single surface for a lighter seasonal arrangement. A bowl already in the cabinet, a favorite book and an existing plant may be enough. Leave some of the surface empty so it can still hold a cup or the mail. Store removed winter pieces together, clean and dry as appropriate, and note their location. Live with the changes for several days before deciding that something is missing; often the unfamiliar empty space starts to feel right.
