Since I returned from vacation, I have been downright ignoring the gym because, well, I've just been too busy to dedicate an hour. But starting today, I'm going all Oprah and getting back on that bandwagon -- with microworkouts. Researchers say that if, like me, you have only 10 minutes to tone, you can still reap some of the same benefits as longer exercise. Need some tips to get started? Check out our 2007 story on "10-Minute Toning."