How about memorizing your password (really easy) or writing in on a piece of paper (even easier)? Ever thought about that?
Why you have to be so arrogant, he only expressed his opinion, if you don't like it, just don't reply, it's so easy.
And no, write it on a sheet/piece of paper it's not the best solution cause you can easily lost it.
I don't mean to start flame with the first answer.