I agree eat less food works. I don't think its really so much as what you eat like most diets recommend, its just eating less of what you eat. Just so it isn't Mcdonalds every day. The biggest factor to losing weight is burning calories through exercise. Pick an exercise that you like. A bike is good, but come winter time you need something else, like a stationary bike or treadmill, or just a fast paced walk. Try to work up to at least 30 minutes of this exercise three times a week. Sticking with an exercise is the key. I use a treadmill, and I never jog or run on it. Just an incline and a fast paced walk. You can listen to music, or have a tv set up to watch. It makes the 30 minutes not seam as long.
Something else you might want to try is lifting weights. Which have many benefits. It strengthens bones, ligiments, and tendons. Best of all it builds muscle which burns calories, even when you are at rest. It has been proven that lifting weights even benefit people in their 70's and 80's.
If you look around there are always people that are selling weight sets, and it wouldn't take that much to get started. Dumbbells work great also. Or you can join a gym, but the best bet is to have equipment in your home, because there will be days that you will not feel like driving to a gym.
Its hard to start an exercise program, and its easy to quit. When you do start, it will be hard to stick with for a few weeks, but as you progress building endurance, and strength you will begin to like doing it, because it will make you feel better, and you will shed the pounds you are looking to get rid of. Best of luck to you, in whatever you choose to do.