Cleaning product manufacturer Spontex starts a 13 week sponsorship of GMTV next month. Four 10-second ads ­ Sunny, Windy, Rainy and Cloudy ­ focus on Sprint Magic Duster and the Wonder Window Cloth. Each carries the end line: "Spontex for a Spontextra clear view." The weather slot runs four times daily on weekdays. {{MARKETING - P&P }}