method lets you generate secure passphrases with dice and a book. Welcome to the paranoid world of cryptography. For regular folks this method is probably a waste of time, at best. But for those interested in learning more about codes, and crypto, this is a real world method used by experts. For best security you are supposed to print out the Diceware word list and use real dice - not an electronic random number generator.
I don't like having to print the Diceware list, or open it up in a PDF reader when I am in a hurry to come up with a password, username, or passphrase. Also I don't like leaving the diceware list around on my desk. But a book is hidden in plain sight.
Luckily nearly every office supply, or better yet, dollar store carries dice, a pencil box, and a cheap paperback dictionary or thesaurus.