We've all been there. You're right in the middle of a crazy workday, wrangling your own kids, or finally sitting down to relax, when the phone rings. It's mom or dad. "The TV is on a black screen." "My computer says I have 4,000 viruses." "How do I FaceTime the grandkids again?" Before I became a full-time family tech expert, I worked in an IT department for small-to-medium businesses. Because we weren't on-site 24/7, we always left behind a physical notebook.