Well, my technique is to use first letters of the words of my favorite songs. Need an example:
Every night in my dreams, I see you, I feel you...
Give me:
enimdisyify
... and a little of insering numbers e.g. i=1, o=0 etc...
en1md1sy1fy
... capitalization? Always give importance to yourself :)
And the final password is...
en1Md1sy1fy
