I'll start off with my own collection:
Home:
- auto airplane mode at night (keep radiation to minimum if u want to use it as an alarm, and saves battery)
- Wake on lan once connected to wifi (not working due to router, but perhaps I'll give it a rego with another one later) (would also require time stamps to enable/disable the flow, in order not to send WoL on bad times

)
Car:
- seperate flows for my NFC tag on my carmount : enables bluetooth if needed, connects to car and starts applications (with sleeps in between to properly boot them)
- toggle to alternate between combos of applications with the above made NFC tag (wikango / google navigation / wikango & google / waze / nothing)
- keep screen on while using media player (actually not using this one)
Work:
- auto quiet mode at work (will probably remove this and replace it with an in-meeting one)
Overall:
- sms to send location from the library (not sure I'll ever use this, hope I don't have to - probably will prefer services like avast though)