About your cell phone - I use an Android phone and I got a Google notification the other day asking me to rate a business. The interesting part was that the message also said I hadn't been there for 11 months! Just goes to show how much data your phone collects about you. I know I could turn off my phone or log out of Google, etc, but I find it too darn convenient to be able to email/text a link or photo...
You have to do more than just turn it off