[evanwillms]

That's exactly what I've been wondering about enabling two factor authentication for something I use as often as email.

Apparently you can print a series of one-time use verification codes that work any time to sign into your two-factor account. Stick a few on a card in your wallet and don't forget to generate more before you're out!

https://support.google.com/accounts/bin/answer.py?hl=en&...

[dlib]

When you do run out of verification codes, but you do have a working phone the 6 digit codes can also be sent to you through text messages or even a phone call from Gmail.

[Drbble]

See http://news.ycombinator.com/item?id=3855880