Comfort and Convenience
Where people like air directed differs: some send it towards the windscreen and feet, others straight at the face. Height, seating position and personal tolerance all feed into that choice, so preferences rarely match exactly.
Safety and Driver Assistance
A few minutes spent with the handbook and the stalks pays off most in a recently bought or borrowed car. Preparation here means knowing in advance which control does what, rather than working it out en route.
Multimedia and Connectivity
Taking a call is a different matter from playing music: it depends on how the phone is linked to the car and where the microphone sits. Where hands-free use is unavailable, calls can wait.