I vary between 8lbs. More than that and I become very strict with myself.
To keep the 5lbs off permanently, it requires a permanent change of some sort.
If you really want to do it permanently, then you would have decide what to change or cut out permanently.
Other than that, I do read from time to time, articles which say swap this high calorie thing, for this lower calorie food, which might be an idea for you to look into? That way you could still have your meal/holiday/celebration foods.