[martinced]

Then you buy two books and put one in a safe at a bank and, once in a while, you keep it in sync with the one you keep at home / on the road.

If a burglar steals it, you can run at the bank to take your 'backup list of passwords' and start changing your passwords.

If you lose it, same thing.

Then you re-create another book so that there's always one in a safe at the bank ; )

I've got a list of all my passwords, without any encryption, in a safe at the bank. They serve two purposes: in case I forget my passwords (I do write them down at home in some 'encrypted' form that is not meant to resist the NSA but that would stop 99.99999% of all the burglars on earth) or in case I die (my family would then be able to access my various online accounts).

[chris_wot]

So now you have two books that will be out of synch, which is worse than losing the book in the first place. And your book can still be stolen. Only this book will be totally up to date (which is fantastic for the thief) but the book in the safe probably won't be.

This is not inspiring in me further confidence in the methodology...