Yet Another Information Security Professional, working in a sensitive information startup.
Of course, a lot of these have been in use long before the NSA revelations...
A few of my personal tools and our corporate-used tools:
All OSX shop configured with strict firewall, fileVault, and openVPN,
Browser plugins to block ads (adBlock Plus), scripts/flash (NoScript), popups (Adblock Plus Pop-up Addon), trackers (Ghostery), and enforce HTTPS (HTTPS-Everywhere).
GPG Tools for encrypting individual files / emails - https://gpgtools.org/
OTR for secure messaging (use Adium which has OTR support off the shelf) https://otr.cypherpunks.ca/
Silent Circle for encrypted voice and text - https://silentcircle.com/
Personal VPN for traffic encryption for browsing outside of corporate purposes, e.g. one of these:
note that several offer payment methods that are anonymous, e.g. gift cards purchased with cash, i.e. http://www.paygarden.com/