[Q] A way to disable "active" wifi probing?

Hi, other than the obvious "turn off your wifi" I was wondering if there is a way to more selectively manage probing requests in android. I am always forgetting to turn off my wifi when I leave the office/home and don't really like the idea of my phone broadcasting so much info about me in the requests (esp when i don't need wifi). I have been looking for settings but didn't find one and was thinking about an app perhaps that maybe can turn wifi off based on location (though i guess that would need gps which would be another issue?). I would settle for something that turns off wifi once it is out of range of a certain point (like home or work) for a certain period of time, then i could just turn it on manually when I am say at a cofee shop or whatever (and maybe it could turn off again when that point gets out of range).