Yes, Toots, I'm gearing up for a second year of healthy living. I started last year on Jan 10, my birthday. I lost 20-25 pounds depending on where you start counting . I tried and failed many times before, but I think it worked last year because:
1. I decided that I really want to take care of myself - it was primarily about being healthy except for #2 below. So, when I make time to work out (which is most days of the week), I remind myself that doing so is more important than anything else (kids are getting older and more independent, which makes this statement possible).
2. I wanted beach arms because of the increasing time I was spending in SoWal and hope to spend in SoWal.
3. I didn't do any fads, just the basics which included honest portion control (this was a big change and had a big result - and it lets me eat anything I want now and then without guilt, just less of it), lower calories but healthy foods (whole grains, etc.), exercise (weight training and walking). My goal was to just have a normal life that didn't feel deprived in any way but rather was focused on healthy habits - I wanted to like/love a new lifestyle. It took a while, but I definitely like the new life style, and sometimes love it.
4. I focus on finding low calorie but healthy and tasty snacks/meals. That hasn't been too hard to do.
5. The trainer was probably the biggest change because she helped reshape my body to what I think it was really supposed to be (and had been until about 15 years ago) - I go to her twice a week. I think of her as my all around therapist because we talk about health, good books to read, kids, etc. while I'm training.

6. I walk on the treadmill at home (when I'm good that's about 4Xweek) for 20-30 minutes. I started slow (no incline and 3.0 MPH) and now I do inclines and 4.5 MPH to start then I slow down to 3.5. I rewarded myself and kept myself motivated by subscribing to several magazines and I read them and watch TV while on the treadmill.
7. I keep measures to I can see how I'm doing and compare them every 3 months or so (e.g., weight, arms, waist, butt, thighs); I follow-up with the things DKA mentioned yearly with the dr (cholesterol, Blood Pressure, C-reactive protein - although this year the doctor skipped these results other than BP because they've been good).
8. I bought all new clothes - that was fun and I won't buy larger sizes.
9. I read two good books, "You on a Diet" and the other book by the same author.
10. The surveys on the websites "Realage.com" and "livingto100" inspired me, too.
I got a bit slack over the past few months (wasn't walking as much on treadmill, wasn't doing weights on the weekend, ate some holiday food), but I'm back on track now. I've avoided being measured until next week when I get back down a few pounds.
My goals for this year are to stay on track, eat more fruits and veggies (5Xday), and maybe meditation/mindfulness (I dabbled in it last year but may want to make it more routine).
There has been one downside, probably related to the weight training. My lower back, especially my left side aches a bit now and then and I rarely had that before. I'm going to a physical therapist to see what's going on and how to heal/avoid future pain yet still work out with weights. If you feel chronic pain with any exercise, I recommend lightening up and checking it out with doctor/physical therapist to find out what the right mix of exercise is for you. No need to solve one problem and get another one.
IBD: I've heard that the exercise should hurt a bit the next day (muscles need to break down a bit to rebuild), but you shouldn't be that devastated after a workout. It should make you say "that was a good workout", but not "this is killing me". Your trainer should not have a one-size-fits-all approach to training, but should adapt it to your personal goals, fitness level, etc. I told my trainer my goals were "to get a healthy body, to get beach arms, to not have any back pain or other problems that arise because of the weight training, to make exercise and other healthy habits part of my life, and to have someone help keep me motivated and monitor my progress". I asked the gym to put me with someone who was a good match for me, and I preferred working out with a woman (we talk about "women's things" which is helpful, too).