I still enjoy the method I picked up from patio11: a sentence with a few numbers thrown in and maybe a mispelling that only I'll remember. This works exceedingly well as I also speak Japanese and throw in wrongly transliterated japanese words into the mix. I can have 2-3 passwords (throwaways and "OMG never use this outside of the most secure sites") and remember them all easily.

Ex: howdoyoudoandwhatdidyoudohavetodayfordinner?345