Any luck loosing those last few pounds?

I have been able to loose 12lbs with diet and excercise.  But I notice that the less weight I have to loose the harder it gets.  Anyone have recommendations for loosing these last 20 lbs?

BTW I use the "Weight Loss Cure "They" Don't Want You to Know About" by Kevin Trudeau... I read up on the diet from the doctor who developed it and it works well.  But it seems to stop working when you have just a little to loose.

Thanks for any suggestions!