I tried exercising alone and it worked, but only to a degree. The first year I got serious about improving my health, I exercised but ate the same as before. In total, I only lost 8 pounds.

The second year I began cleaning up my diet and watching portions/calories along with exercise. And I lost 24 pounds.

So for me dieting AND exercise is the most efficient method.

What works for me is to view exercise as a way to make my body stronger instead of just being a chore. One thing that I do is to track my fitness progress so that I have an motivator to keep plugging at it. Although after some time, having more energy and feeling great will be motivators as well.:D

I see many people have to have both to lose. I'm making some progress in how I eat - I'm taking "baby steps", trying to make each new eating step a habit before adding the next one, instead of changing everything all at once. I guess I was hoping I could just exercise like mad and lose the weight, because I so like to eat! ;) Oh well. I'm moving in a week and when I move I will have the internet (right now I'm limited to the library or a friend's house). I will be able to visit the forum much more often for support as I start this next "baby step" of exercise. :D
Thanks for all of the info. I have learned so much about food and health just by lurking at 3FC. :)