Candles have been used since the beginning of recorded time for everything from reading light to religious ceremony.  The popularity of candles seems to have no bounds as new companies small and large continue to manufacture and sell candles in a wide variety of scents and styles. One area of concern for many consumers however, is the variance in quality between different candles.  Candle lovers quickly notice that some candles retain their scent until they are finished burning, while others fade...