A living room sofa is likely to outlive a lot of things-from the family car and microwave to the kids' trendy hairstyles. Most people keep a sofa from six to 15 years before buying something new. In a recent survey by Furniture/Today, a leading trade publication, more than half of consumers in the market for a new sofa were replacing one that was 10 years old or more. If you are one of those consumers-or soon will be-here are some tips on how to choose your next sofa wisely. The more your new sofa speaks to your personal style, the more likely it will stand the test of time. We suggest starting with a classically designed frame and adding personal flair with custom touches. "With the wide array of optional accents available today, consumers can create one-of-a-kind designs,"