Is there a pre-flight check light floating around somewhere with steps on everything that MUST be checked before flight?  Sometimes in a rush, I'm always scared to forget to check some settings before a flight.  Or do you guys always reset all the settings, then just calibrate at location and go?

Do a search and you'll find a couple or more.

Or make your own!..... That way you know everything is on it because you want it on it.
I have only ever calibrated my IMU and compass once, that was the day I unboxed my Inspire. However, I ALWYS check mod values before I fly (even after a battery change). If they needed calibrating I would do it.