When a client still has their furnishings of 20 years, they want to shift into neutral.  These days, we suggest neutral surroundings with surprise pop of color in the pillows and accents.  You can start by painting walls, adding window treatments, and then replacing furnishings.  Sometimes there is nothing more beautiful than multiple textures in a neutral room.  One suggestion would be to start with a linen texture on the window, faux velvet on the sofa, rattan chair, sisal rug, cotton print pillow, nailhead trim on a chair, metallic mirror, ceramic pottery, and finish with wood textured painted furniture.  Shifting to neutral can be classic for years.