Try moving one thing before buying another

Name the difficulty

Is a lamp too far from the chair, or is a small table always on the wrong side? Move one existing item and live with the change briefly. Keep doors, walkways and cables clear while experimenting.

Compare an ordinary day

Use the room as you normally would. Notice whether the problem has disappeared or simply moved elsewhere. If you still need something new, you can now describe its size and purpose more precisely. The experiment is useful even when you return everything to its original place.