So back in the distant past (somewhere around 2006), I used to sign all my email with GPG. There wasn't any real point to it at the time, it was just something geeky to do. I'm beginning to think, though, that signing (and encrypting where possible) is a good idea -- even for routine messages. And given that I've recently switched back to a desktop email client -- after 5+ years with Gmail -- it shouldn't too difficult.
To that end, I've set up Thunderbird with the Enigmail extension. I've pasted my key below for convenience. The fingerprint is on the back of my business cards, so ask me for one if you see me.
Fingerprint:
68DE 4FE5 68AD EEC7 F037 D53A 9A71 0F55 947F D526
Pubkey:
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2.0.19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=a5Ik
-----END PGP PUBLIC KEY BLOCK-----