Internet Annoyances by Preston Gralla. First I'm flipping through it and thinking "Hmm, good tip, got to try that at home." Then I'm making little notes for things to try because it's getting to be too many to remember. By my second page of notes I realize that I just had to to take the dang thing home. First book on "How to use the Internet" I've read since The Whole Internet came out in '92.