Look at the whole palette
Place timber, stone, paint and fabric samples next to each other. Colour changes with light and neighbouring finishes, so review samples on site when possible.
Ask how it will live
Understand cleaning, moisture exposure, wear and repair requirements before choosing a finish. A material should suit the way the room is actually used.
Make fewer, better decisions
A restrained palette can create continuity between rooms. Use changes in texture and scale to add character without adding visual noise.