With a lot of people still spending more of their time at home, nail art is seeing a huge surge on social media. One trend specifically on the rise? Smiley face nail art. Maybe celebrities like ...

The discounter initially gave out "Smiley" stickers to store shoppers in 1990, and the image later became the face of what the company calls "rollbacks" -- discounts for a set period on key items.

He distributed 10 million smiley stickers for free, and soon the symbol’s joyful simplicity became a staple on car bumpers throughout the nation. As the smiley infiltrated mainstream culture ...