This one password I have for my important stuff (mostly concerning money) is such a mess of numbers and letters that I bet if you just punched the keyboard you would have a higher probability of getting it correct then trying to guess it. LOL.
But direland, for things you care about and that you would rather NOT have stolen, you should have a diffrent password just for them, with some kind of combination of letters and numbers.
for example, you rather not have someone get into your pay pal account I bet. So make sure that has a nice hard to get password.
I've lost 2 gmail accounts though because of me forgetting my darn password.... AHH!