We’ve all heard of the news article about how the police tracked someone down because they checked the phone’s location.  Well, there’s even a better feature.  You can have your phone automatically save it’s location every so often.  So even if it is turned off, the last saved location would be recorded at Microsoft Phone’s web site.  All you have to do is login to your same account and find your phone.  Or just make it ring if you can’t find the darn thing.