Don't think I could go back. I use my smart phone for online searches while at work when I need something, or need to learn something. I use the GPS several times a week when going a new house. I can't remember the last time I used a map to find where I wanted to go. I watch the weather and decide what I will do that day, or how long I have to work outside when a storm is coming. I send pics to clients, sometimes several a day if they are not around and I need them to make a decision on something. The flashlight is always there when I need it, and even though I have a nice LED in my truck, it's just easier to pull out my phone and use it for quick trips into attics or looking into a dark place. The calculator is used every time I figure out a bill for a client, and the calendar is how I know what day it is. There is an alarm on my phone so I don't miss appointments. The best thing about my smart phone is that I now have it all in one place instead of a dozen different things stored away in my truck.