What are some good easy diets that actually work? Any personal experiences? Any websites?

I am seeking a manageable diet in which I can eat my own food and manage it without it demanding a lot of my time. I have heard that the nutrisystem works but it is not my own food. Could I have some feedback on some diets and if you all have tried some and have before and after pictures it would be nice to see them. Also, give the time rates in which how long the diet took to work and to have an effect.