Raising little kids requires some serious patience. That's why a positive parenting hack is currently going viral on Facebook — and people can't get enough. The "hair tie trick" first appeared on the blog The Reformed Idealist Mom, after author Kelly Holmes realized she often lost her temper with her middle daughter. "Something about the preschooler-ness of my preschooler was turning me into an angry mother every time I opened my mouth to talk to her," she wrote. "I needed help."