A Bobby Pin’s Zigzag
When you stick a bobby pin in your hair, you rarely look to see whether the zigzags are facing up or down. But bobby pins can keep your hair style in place longer if the ridges are facing down towards your scalp and not up.
Toothpaste Stripes
The red, white and blue stripes in Aquafresh toothpaste have a serious purpose. The blue stripe indicates the cleaning and refreshing action. The third stripe was added to symbolize that the toothpaste had cleaning, freshening and plaque control perks. This technique was implemented to get customers to care more about the health of their teeth and gums.
