Brad DeLong recently had a problem remembering his password to Timbuktu Pro X. I had the following response:

I’ve run into this problem before. My solution was to create an Excel Spredsheet with all of my passwords and the corresponding programs/websites. Normally, this would be a serious security risk, but since I am the only person who uses my computer (although, occasionally my spouse uses my computer) I put the Spreadsheet file in a really obscure directory (not My Documents or Mac’s equivalent) that I only know. Whenever I forget a password I know where to look.

Of course, there is always the chance that my computer could get hacked and someone could gain access, but there is added security by using an obscure directory.

Also, you could create a spreadsheet and either place it on a PDA or put it on a floppy disk (that is mislabled), that way you can keep up on your passwords, but if someone is looking for them they will pass the disk over.