I just discovered a cool Google account feature - Assign a trustee to access to your Google account if you go dark - https://myaccount.google.com/u/1/inactive pic.twitter.com/VpD3mjmzAv
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Last sign-in? You pretty much never sign in except activating a new device...