Look for traffic flow and how your family lives. A polypropylene rug is great for that space where spills may happen and a silk pillow is an elegant addition to the master bedroom but not the playroom. If you are going to worry about a piece being broken or getting dirty it is the wrong choice for that room. Be careful to match sizes of items to the size of the room. An unusual oversized accent is a great focal point and conversation starter. But a room filled with items that are over-scaled will leave it looking small and cluttered. Always remember to carry your room dimensions in your traveling decorating kit.