Re: You want privacy? You want anonymity? NEVER use AIR And ALWAYS pay in CASH!
Also, change hotels every night, and cars a couple of times each day. Keep one eye open for vans that are unmarked or have generic markings. Always a tell: old-looking van, old-looking numberplates, plates fixed with shiny new screws. Keep the other eye open for mail vans, telco vans and, these days, UPS/FedEx/Hermes/etc vans.