I signed up for a 'free' session w/ a trainer at the gym. Of course, it was a ploy to get you to sign up for training sessions. And, it worked. Yesterday was my first session with Fred. According to Fred, I only need to do 20 min of cardio at my fat burning target heart rate to get results. Apparently I have been wasting time. Or dreading a 40 min jaunt on the elliptical when I could have done 20 and not thought twice.
Also - I learned that weight training is more important than I thought. I do not weight train. But, when you have more muscle, you burn more calories at rest. (I feel like I learned this somewhere along the line, and promptly forgot to apply it to my own life.) So, now I have a fun little sheet at the gym that tells me what machine to use, how much weight and how many reps. And at least I know I'm on the right track for change, and will have someone to check in with weekly to make sure I'm getting somewhere.