AZfiddle, your tale is a cautionary one, though, usually I can get back with a little work, just like I did in the past 2 months. The last time DH and I went on this eating program, it was also before a trip. When we came back, some of the habits stuck, but not all. And, it was 8 years ago; it's more important for me to maintain now.
All in all, I see very specifically what puts pounds on me, and what doesn't. Some of it doesn't make sense, such as I can eat a small amount of whole wheat cereal and milk, but not half a bagel (which causes me to gain). Brown rice and quinoa seem to make me gain, but whole wheat pasta doesn't.
I've learned how to control my portion size, which is a big issue for me. An issue now is I want to get back to using my normal Cooking Light recipes and other recipes, which really are quite healthy, but I am afraid that we will both gain it all back. I'm not content to only use the recipes/meals from the low glycemic cookbook I've been using over and over. It's a 6 week eating program and it really works. The past week, I've been recycling the last 2 weeks, which pretty much model what you are supposed to eat to maintain.
Yellow, 105 is a normal weight for my height and build. I've been around this weight since high school, except for my one "fat" period and during pregnancy. I am only 5' 1", and I think now I'm actually closer to 5' 0."