Every now and then, a truly clever parenting hack will go viral and leave you wondering why you didn't think of it. Well, prepare to be amazed by the latest parenting hack to take social media by storm. It's being referred to as the "sticker hack," and it was invented by a mom named Jane Stine, who has the entire internet bowing at her feet. The clever mom shared the "hack" on Facebook, where it's been shared more than 100,000 times.