In common areas where you expect to entertain guests, a rich centerpiece with a story behind it can create an excellent visual pull. Art pieces, antiques, or even just out-of-the-ordinary pieces of furniture work well. Remember, centerpiece doesn’t mean it belongs in the middle of everything.
When things get too monotonous, the simplest way is to chose a section where you can throw-in the unexpected. A break in color theme, a deviation from the mood, a change in the pattern. There’s no telling what could work. The best way to achieve this is to try and make the change as seamless as possible.