Wear a wide-brimmed hat, sunglasses, face mask and put a pebble in your shoe.
Use RFID blocking wallets.
Pay with cash where feasible.
Don't run google/ios services on your phone.
Freeze your credit reports and check them annually.
Stop visiting social media.
Disable ontrac/onstar crap in your legally owned cars.
Use Tor Browser.
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Privacy is not difficult, it just takes a bit of effort and discipline.