Don't give up your long term goal just to satisfy some craving. This applies to Saving money, Dieting, persistance in almost any andeavor, etc.

Dieting makes a great example. I really want to be 160 pounds. Right now I am 175. Not much to lose, but if I give in to my craving for ice cream today, it pushes my goal that much farther off. If I give in today, it pushes my goal that much more into the future. One day won't hurt, but one day will become two, which becomes three, etc...

It's just an example, you understand.