just don't lock it anyplace dumb (empty streets, overnight anywhere, bushwick, etc), lock it well (both wheels, frame, krypto chain), take some precaution to prevet theft of easily removable parts like the seatpost and stem (epoxy/glue/wax/glued BBs in the allen bolt holes), and don't be too paranoid about it.

you can wrap the tubes up, but i'm of the opinion that while most any bike will get stolen, many thieves know what they're stealing and are not just monkeys who think "hey, it looks shiny."

sometimes i think wrapping the tubes draws even more attention to a bike than riding something with no logos at all.... as if to say, "i'm hiding something!"