Location, location, location. If you ever wanted to trace where you've been in the past, you can use this little trick and do so by using Google Maps. Of course, this all depends on whether you have enabled two settings tied to your Google account: location reporting and location history.
First, sign in to your gmail account, and then head over to this Google Maps website. You will see this screen below:
Then just select which dates you want to view, and data points will pop up on every place Google has you registered. It sort of looks like a Hurricane Tracker:
