For work-related passwords, my boss has every right to know my passwords if I get sick. So, it makes sense to store them offline (e.g. a piece of paper in a drawer at the secretary's office). The security my passwords then relies on the security guards at the gate.
For my personal passwords, I rely on security through obscurity: I don't believe that anyone can find my passwords in the giant mess that I call my office. If I get sick, I can use the recovery time to clean up my office. It will take weeks, if not months.
Btw, I don't need a terrible accident to forget passwords. It happens a lot for those passwords that I don't need too often.