JBS beat me to it, but I will second the recommendation of LastPass; especially for Internet passwords. Secure, encrypted, and you use a master password to unlock the others. Also has an Android app that is useful for looking things up on the fly without firing up a laptop.
My master password is actually a sentence that uses all character types, and I don't use anything like it anywhere else. Would be verrry difficult to force.
Nice function to auto-generate passwords to your standards, then remember it so that you don't have to write it down or remember it.
