How to lose body fat?

Hi there,
I am so discouraged as I got on the scale after overeating the last two days and saw a five pound increase. I am sure it is not REAL gain, but I am just so mad at myself and upset. I am recommitting right NOW to a healthier lifestyle. I am about to write a blog about it, so feel free to friend request me, read it, etc. But right now, I have a question on the ways in which to lose fat the fastest. I am wondering in regards to weight training and cardio.

I have been doing cardio about 5 times a week for about 30 minutes. I also have been lifting weights about 3 times a week. I am wanting to lose the last ten pounds, and I can stand to lose them. I still have a larger percent body fat. Here is my question... What is the most effective way to do so?

Thanks!