We are the same, I put my phone and charge (set to stop charging at 85%) overnight, my wife does not, and then her phone dies at odd times like when she is out shopping. I suppose it is about having a scheduled routine or not. I have alarms set for 10:30 every evening to check if a charge is needed for my watch that day. Some people just don’t like the routine and prefer to live a bit more on the edge.