This really helps during that night-time want-to-snack-for-no-reason moments. I recommend making a list of things that you like to do and/or a list of things that you may need to do around the house. Then if the urge to snack hits you, you can go to this list and do something fun or productive instead.
It was one hour passed the lunch time. I already had my meal and I was craving something mouthwatering. I guess I was craving for some chocolates. I was preparing something on my laptop. It was 40 minutes I didn't leave my station. So I saved my files and took a warm shower and then drank a glass of water... Not only I relaxed, but I worked on my hunger.