Just a piece of advice for those of you that have passwords written down, what I recommend doing is adding some characters either side, so if anyone else gets hold of it, they probably won't be able to get the actual password anyway, whereas it will jog your memory and you will figure out which characters to discard. PIN numbers in particular should never be written down in plain text, as a 4 digit number stands out like a sore thumb - if you really must write it down, disguise it as a phone number or similar.