How can I remove Google from my life?

Geoffrey writes from his Gmail address to ask how he can stop Google from intruding into almost everything

How can I stop the intrusion of Google into almost everything? (After I've changed my email address.) Geoffrey

Google's motto used to be "don't be evil", but in the eyes of some it has now taken on the mantle of the "evil empire" from Microsoft, which Bill Gates and crew inherited from the IBM mocked in the Mac's launch advert in 1984.