If not, it certainly should be. "Going Green" is not something we should only when it's convienient - it's the lifestyle choice that doesn't wreck up the earth. Because quite frankly, when the choice is using unnessecarry resources (especially plastic ones, thus made of oil) and harming the planet or learning how to carry an extra item, I think we all know which is the responsible path.
I will say, however, that I was very much looking forward to sledding on the golf course with FoCo trays come Winter Carnival. Oh, well, ceste la vie.