As an IT consultant, I use my phone a LOT! Besides the obvious list of contacts, texting and keeping saved notes for all clients, I like to take high-quality, 4K videos of their server rooms, so that I can see and often resolve issues remotely. In many cases, clients take pictures or video of computer issues and send them to me as well. I have several apps that help with measurements (distance, Internet or WiFi signal strength, etc.), remote access, router access, calendars, calculators, as well as cheat sheets (like how to wire up a CAT6 cross-over cable correctly). I've taken pictures where it's hard to reach, I use the flashlight a lot, I've used the magnifying glass AND I've definitely done the whole "Ok Google... Removing the hard drive on a [insert laptop model here]" type stuff. Oh, yeah. It's also my navigation device without which I wouldn't be able to drive anywhere! ?