I am now physically active for at least five days a week for 50 minutes or more. I think this has tremendously helped me in my weight loss. When I hit the gym (4-5 times per week), I burn at least 600 calories. At work, I walk with coworkers on breaks, and have estimated that I burn 420 calories if I walk both breaks, or 210 calories for the one break. I have also estimated that at work, we walk about 1.15 miles for each break.
It all adds up. The more active you are, the more weight you can potentially lose. My appetite has increased due to my new metabolism levels. I just feel great after a great workout at the gym, if I hit that next level.
Here's a few tips I have learned and picked up. To burn fat, your heart rates needs to be raised 55-65% (for training 65-85%). I also learned that for me, the best time to work out at the gym is in the morning, I feel better, healthier, and I get more out of my workout. I am also not as intimidated in the morning - there are not as many people, and the crowd is usually an older crowd that is more encouraging. Find the best time that is suitable for you.