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10. Toothpaste Stripes
Ever wondered why some toothpaste have stripes on them, unlike some who are just plain white goo? Toothpaste company Aquafresh started the trend of the striped toothpaste, after studies where they learned people wanted more out of their toothpaste than just minty freshness and a boring solid white look. The blue stripes were added for the purpose of dual cleaning and refreshing of breath, while the third red stripe symbolize the triple-action of cleaning, freshening, and controlling plaque. While most solid white toothpaste do the same triple-action cleaning action nowadays, we must admit the striped ones look more attractive to the eye, thus selling better than the plain whites.