Well, I have three main passwords, and I can't remember which one I use on which site, and if I've changed said password. So I have 1-3 tries, usually.
I have a system, where the idea is always the same but you tweak it according to which site it's for. So it might be iH3artFunSubstance here, and iH3artGmail for Gmail. Makes it easy to remember and more secure than just reusing the same one everywhere.
2nd: what the heck?
3rd: *heavy breathing*
4th: Heart attack