Automatically notify people when I leave/reach a location Does anyone know of a way to automatically send a notification when I arrive or leave a location?

For example, I'd like to send a notification to my wife whenever I leave the office. 

Does anyone know of a service that would do this? I'd prefer something stock/Google over some home-brew app, but I'm interested in hearing what's out there. I'm not really interested in a foursquare type of thing where I earn badges, it's more for communicating my location with one or two people.
Tasker can have approaching/leaving a location as a trigger, and sending a text message as an action. I've read before of people setting it up to do exactly what you're asking for.