My father always taught me - keys and wallet every time you leave the house. And keep it in your pants pockets, since you never* leave those. For my future ch

My father always taught me - keys and wallet every time you leave the house. And keep it in your pants pockets, since you never* leave those. For my future children I will say the same, plus phone. But maybe it will be one physical thing at that time. *Relative speaking, comparing to jacket let say.