I've been using a PC for 28 years, and about half of these shortcuts are new to me. (Although, hmmm, 28 years ago Windows and e-mice didn't exist. So, okay, now I don't feel quite so dumb.) Make sure to read past Pogue's blog entry to the reader comments. There are hundreds of them, all of them useful. Yes, okay, who has time? But maybe he will write the book!