I do not use a cell phone while driving.
In the company I recently retired from, if you were caught using a cell phone while driving on the company’s premises, or on company business, you would be fired. They were REALLY serious about this. Their own safety records highlighted this as a dangerous practice. So they made a hard and fast rule for ALL their employees (not just those who drove as part of their job) - do not use a cell phone, not even hands-free, while driving.