How Not to Look Old: Fast and Effortless Ways to Look 10 Years Younger, 10 Pounds Lighter, 10 Times Better, by Charla Krupp.

Ok, so I'm not 40 yet, but I am starting to think about these things. What I liked about this book is that she separates her advice into "high-", "medium-" and "low-maintenance" levels, so that there is still hope for those of us who can't fly to New York for haircuts and spa treatments.