I would like #homeassistant to alert me if I have forgotten to take out the trash. First thought is a proximity sensor of some sort. Or just anything where I can detect that my trash can has moved the ten or so meters away from my house to the road (there are multiple trash cans on different schedules). A sensor that does nothing except report signal strength might also work.

Any good ideas?

@Gjoel place a zigbee Aeotec window sensor under the trashcan. If it’s connected on trash day send a notification.
@mshdk But that would require me to park my trash can very carefully to align it with the sensor, no? I can park them more or less the same place, but it's hardly within 1cm each time...