Comfort and Convenience
Cabin temperature is a common point of disagreement, because people differ in build, clothing and how strongly they react to sun through glass. Agreeing on a setting, or dressing in layers, avoids repeated adjustment.
Safety and Driver Assistance
Time spent parked learning where the wipers, lights, demister and hazard switch sit means those actions need no searching later. Adjusting mirrors and seating position before setting off belongs to the same routine.
Multimedia and Connectivity
A phone used for navigation drains quickly, so a charging route matters on longer runs. If charging is wired, a cable of the right type and length is worth packing separately from any audio or calling arrangement.