Getting a cleaner-than-clean face may seem appealing, but is the latest trend in skincare all it's cracked up to be? In a word, yes. The Clarisonic Skin Cleansing System gets rave reviews from most of its users, according to TotalBeauty.com and other beauty product review sites. The company claims that sonic cleaning uses a patented sonic frequency of more than 300 movements per second to remove dirt with its...