Set a Home address on your preferred GPS application? This is a bad idea as if you phone gets lost or stolen they know where you live and if your there. All they have to do is call.
This seems to be "common wisdom" which doesn't hold water, on examination. What magical power has my cell phone given these thieves? How does calling my land-line give them the upper hand? My number's in the phone book, along with my name and address, and has been for 30 years. Reverse-lookup sites abound on the net. Thieves can pick any house at random and call it. They don't need a stolen cell phone to do this.
Time to put that ridiculous canard to rest. Social sites where you "check in" to a location in real time, are far more dangerous, as they actually tell strangers that you're not at home.
As for one-click home navigation - it appears it's no longer possible. But if you set your home address, you have 2-click navigation. When you open the Nav app, there's a Go Home button, and it does just what you expect.