Firefox, ABE, NoScript, Request Policy, Ghostery, HTTPS-everywhere, hygiene.
The irony of my militant approach toward privacy is that I probably make myself more interesting to would-be eavesdroppers by my carefulness than I would if they could see it all -- I'm just not that interesting.
On the plus side, the LCD of legitimate-threat hostiles is greatly increased. I'm fairly boring even to neighbors and law enforcement and copyright holders and scam artists and advertisers. I imagine I'm pretty stultifying to nation-state actors. :)
Still, I'd like everyone else to join me so that I can get lost in the crowd. The untracked, encrypted, well-rested crowd.
Come on in, the water's fine.