What has helped me is going to bed earlier... I find that with the late night snack (for me the craving shows around 11pm or 12am), if I am already in bed sleeping, or trying to sleep, I find I won't get the craving.
Stay out of range of the kitchen--I always never want to get out of bed once I've gotten in
Stumbled into Primal due to food allergies, and subsequent elimination of non-primal foods.
Start Gluten-Free/Soy-Free: December 2012; start weight 158lbs, Ladies size 6
Start Primal: March 2013, start weight 150lbs, Ladies size 6
Current: 132lbs, Ladies size 2
26lbs lost since cutting the crap.