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Hmmm ... I like the prawn idea, not the least because everyone eats their lunch in the office anyway.
During my time there I have created lots of templates for various labels and such, purely off my own bat. I may well transfer them to my personal drive before I leave, along with the various corporate information lists I have gathered, as well as a few passwords to forms that I update on a regular basis. I gave her the passwords months ago in case she ever needed to access the documents when I wasn't there. If she's lost them now, then that's her own problem (and she's good at losing passwords).