Eat foods with a low glycemic index. These are foods that take longer for your body to digest and convert into energy, so you will feel fuller throughout the day with a smaller number of calories. Moreover, you avoid the "sugar rush" that comes as a result of eating foods with a high glycemic index, getting a nice boost of sustained energy throughout the day instead. This will keep you uplifted whether you're doing work or exercising.
And while we are talking about eating at night I should bring up late night snacking. You don’t need me to tell you that this is hurting your weight loss efforts, but when should you stop eating? Make a goal to stop eating 4 hours before bedtime, if you are starving have some veggies and a big glass of water to fill up your belly. Remember your “car” is in the garage, it does not need gasoline it just wants it. Look back at how you ate today and see if there was an opportunity to eat more earlier in the day so that you don’t have those late night cravings tomorrow.
getfit is great in that it is pretty satisfying to see how my physical activity measures up. It also prompts me to kick myself when the goals are not met. The different elements that allow the community to get to know MIT better (e.g., the tunnel walks) are pretty cool. It provides another avenue for me to connect with my friends, and I think getfit is a great program to enhance wellness at MIT.