I agree with Eno...don't consider it eating off plan, but planned flexibility every once in a while. I firmly believe (although many here may disagree) that, if you don't allow for that flexibility, this Way Of Life becomes too hard...you begin to feel deprived. The trick, of course, is figuring out how to balance it so that "planned flexibility" doesn't become your NEW way of life.

Good Luck, and congrats on your progress so far.