thank you for your answer and all the options provided!
Option 2 - Check a Location
Can you look to the street out of a window? If you can that’s probably easier than checking the phone.
Fair question but no, I can’t check the car just looking out of the window
Can you explicitly check for the presence of the car in the garage? A pressure sensor, light switch sensor that sits under the car when parked, ultrasonic distance sensor, video camera, etc.
This is kinda where I was getting to, but wanted to check out if I was missing something simpler. Especially because I don’t know any of this sensor nor I know if they can be automated in some way. Any brand you can think of that I can check out?
Option 3 - Ask the Driver
Ask your wife directly each time you want to go and use the car and she parked it. And vice versa
This is where the “fun” begins. The car is supposed to stay in the garage during the night, but during the day we leave it in the street if we know we have to use it again before night. But then something might come up and we forget (or don’t bother) to move the car to the garage for the night.
And since there’s no one day equal to another, the following morning is like “Did you take the kids to sports yesterday? Did you do groceriers?” to find out if we left the car out or not.
You may be able to have a system of where you deposit the car keys (e.g. two hooks) to indicate where the car is parked. A non-verbal communication.
This is what my son suggested and I looked at him in awe because of such a simple and elegant solution! Unfortunately it has some flaws as well. Each one of us has and uses its own car key, so you may end up having a key on a hook and another on the other hook. But I guess who parked the car could move both keys to the right hook.
But another problem is that many times you throw the keys in your jacket or your purse to pick up the bags or other stuff from the car, and you would forget to put the keys on the hooks.
Anyway, this is a simple solution that we could try and see if we stick with the discipline.
Option 4 - Agreed Process
Both agree to park your car either consistently in the garage or on the street.
As a programmer, I love to agree on “reset state”. But to be honest that would be a limitation to the usage.