If you invited me to try and crack your password, you know the one that you use over and over for like every web page you visit, how many guesses would it take before I got it?

Via: Lifehacker by way of DF

Here’s how I came up with my password…

I first devised two strings of completely random numbers and characters in my head — each a different length — committing them to memory by mentally reciting them to myself over and over during several days until they became so engrained that I could rattle both of them off to myself without thinking. Then, I added a few special characters at logical breaks in the cadence of the strings and combined them — leaving me with a password that’s over 20 characters long consisting of random numbers, upper & lowercase letters, and special characters that I have no trouble remembering or typing quickly.

The key for me was the mental memorization exercise. I’ve never written my password down (not even the smallest bit of it), nor have I ever verbalized any part of it, ever. This string of numbers & letters exists in one place only — my head. And there they shall stay.

Basically, my password is so secure, the sun will burn out before it can be cracked according to the graph in the linked article, and it only took a couple of days of mental gymnastics to accomplish the feat.