Between Slack messages, email notifications, calls from family and friends, calendar reminders and alerts from dozens of apps, our smartphones would ring and ding like slot machines, if we let them.

Do Not Disturb gets a few great additions in iOS 12. These new features are very simple. However, they will make a big difference in how we use our phones — and how we interact with other people.

Under More Controls, tap the plus sign next to Do Not Disturb While Driving. On the Home screen, open the Control Center and tap the car icon to turn off or turn on Do Not Disturb While Driving. This ...