At my previous place of employment, our credit card system required you to change your password every three months. Because I only accessed my credit card program once a month, it seem like I was changing it all the time. This made me very angry every time I had to think of a new password. Because I was accessing the program so infrequently, I would have to write the password down. So every third time I would cross off the old password and write the new password down.