cell phone dependency

Justin lost his cell phone in a creek while we were in Utah and it's really made me realize how dependent I am on that little piece of technology! Hopefully his new phone will arrive soon but in the mean time it makes simple communications not so simple. Sometimes I have to walk all the way up to his room (2 flights!) just to remind him to set his alarm to get up for school and sometimes I just want to send him a text while he's with his friends so he can remember that his annoying mom is thinking about him.  That's of course with the hope that he'll 'remember who he is...'  haha!  And further, how did parents ever know exactly where their kids were after school before the advent of cell phones? Not that the cell phone is a fool proof plan for that but it does at least help. I miss his phone!