You may want to tell your "non-tech savy" friend that I have always keep a small calender book, or something else small, just for the computer and write ALL computer passwords there, and to make a habit of it. That way she won't have to rely on her memory (if it's anything like mine, it isn't that good)

It sounds like a simple tip, but is sure has saved my butt on a numerous occasion.
Hope this helps,