Raising kids is one of the most challenging things you’ll ever do. A 2016 Chatelaine survey of 1,000 women between 35 and 45 years of age revealed that screen time is the no.1 cause for mom guilt. As an urban 21st century mom, I can’t agree more. It’s so easy to hand over parental duties to my iPad when I want to spend some quality time alone with my husband, or leave the TV on when I want to go full blast with my home workout. Truth is, I let slip on my screen time for the kids way more than I should, and it’s time to put some rules…