I am really not trying to be a jerk because I too have a grazing issue but I have found the easiest way not to do it is to not put the food in my mouth. Seriously, it is that easy. I used to go into the kitchen, open a cabinet, eat a few nuts etc. Now I just don't. What you are doing wrong is continuing to put the food in your mouth. Stop.
As for getting kids down to two meals, well, I can't help you there as I don't have kids. I am sure others will chime in though Best of luck!
"I need large pieces of dead cow to be happy." - skink531
"You truly are delusional and other forms of insanity apply go you. You aren't even interesting." - oceangrl