Apple's Address Book has a neat feature: when you click on the label next to someone's address it launches your web browser and shows you that address on maps.google.com (Google Maps). Very handy, but wouldn't it be neat if it gave you directions to that address as well? Of course it would. I thought about this on and off for a few YEARS and finally decided to do something about it: namely, I wrote an Address Book Plugin to provide the "Directions To" functionality. You are welcome to try it, and welcome to use it without restriction.
Here's a video that shows you how it works.
Click here and get the plugin. Give it a try and let me know what you think.