My personal favorite method for passwords is come up with a passphrase I can remember, encode it to base 64, and use the encoded string as the password. If its not too long, the encoded version is usually not hard to memorize either.
I'm joking. But what if I weren't? Especially if you're going to announce this on the internet, it sounds far more effective to add 1 character to the end of your passphrase instead, since each exponentiates any brute force effort, and isn't defeatable by a simple pattern.
(Or announce on the internet that you're doing something far more complex, like running bcrypt on all your passphrases to generate your passwords. That would make an attacker's life significantly more difficult than base64.)
(Or always lie on the internet about how you generate your passwords. I hope that's what you're already actually doing.)
tr -cd "[:alnum:]" < /dev/urandom | fold -w 20 | sed 10q
Then I use an encrypted text file via Emacs to store my passwords
strings -10 /dev/urandom | head