If there was an app, it might not require any integration at all - just a vibration or beep pattern with a notification every time I step out should be more tha

If there was an app, it might not require any integration at all - just a vibration or beep pattern with a notification every time I step out should be more than enough. If I have my child I'll ignore it the way I would any message, if I don't the distinctive pattern should be enough of a memory jog.