Mike is right- one bad day is better then 14! I slipped up a bit yesterday too!
When i get home from work it is really tough for me- because i have free range of the kitchen

It helps for me to plan out food for the day- then i can look forward to having that 200 calorie snack when i get home. I know when i cant have- so i focus on that.
Planning out my day in the morning helps my food intake overall too- because it allows me to plan ahead and prepare myself for the upcoming meals.
Thinking ahead is always the best when it comes to eating healthy-