Found in the book on Amazon – 101 Weapons For Women
Not that surprising considering the book was published in 1992. I’m sure there a lot of other good advice in that book that hasn’t been rendered obsolete.
As a 2010 office tip for women regarding self defense and removable storage media, i’d have to recommend going with breaking a CD or DVD in half and wrapping it up in some cloth or paper so you don’t cut yourself. Those things are RAZOR sharp when broken.
I haven’t seen a 5 1/4 in. or 3 1/2 in. disk since the last flea market I went to. I don’t think I’ve seen a box from “card files” anywhere in the last couple decades.