Because I always forget something
Don't hide lav mics in long hair, you will get noise.
Use mics for people, with individual storage.
Have a good backup audio recording if you can. For me shotgun mic on camera
Mics on other devices are just for audio sync (can be leveraged in post if using backup approach).
Setup
Use auto focus for colour balance/white balance Then fix focus! Check focus, then check again (don't want to focus on background), then if you can fix it.
Pro Camera
Mobiles