One rule for unlimited security ?
Memorizing one rock solid strong enough rule which results in combined lower and upper case letters, numbers and special characters will release you from the password mess for the rest of your life. Enjoy!
Note: some rare credential providers limit the freedom of password. For those not-up-to-date services you may consider a fallback solution, something simple. That is what you will try as your second attempt if the first one fails (happens to be a site which has that unfortunate limitation in place).
Another note: You may want to evolve your function over the time. For example have varied rule parts set by you per accessed location, like “business/ civil”, “money involved/ not”, “private/ shared access”. Just for fun and to make it even harder to crack what you have embed inside your head. If you have to manage lot of accesses, then in few years you will notice how good you have become in this. Believe me, I did and it still amazes me.
Create and memorize only one rule. Apply it everywhere. You will not anymore login with same password(s) to different services. With participating services your password will be different for each time you login. Your security goes five galaxies north. But even more, your password burden disappears permanently. Your new password stress free life just started.
name without “www.” as your public key. Your single rule will then scramble it as you wish. We have lot of examples how to do it. All for free.
Overwhelming majority of users relay on too simple passwords. And those who try to improve their security with multiple complex passwords – either burden their lives or somehow compromise the security by storing the passwords outside their brains, no matter where. All external storages are at risk. We will memorize a single rule and never revel it to anywhere. Only that can be considered a real secrecy.
And even more than that, your life will get so much more simple in regard to the everyday password hassle with numerous logins when a single rule every time answers your question: “what was my password to this login?”.