It’s an unwritten law that you can’t write about personal privacy without quoting Sun Microsystems CEO Scott McNealy’s infamous 1999 statement: “You have zero privacy anyway. Get over it.” But the fact is, McNealy was wrong. Although protections in this country are not exactly plentiful, this isn’t 1984 or The Trial—at least, not yet. Here’s how to avoid some of the most annoying invasions of your online privacy.