Maybe you have been here before.Whenever I go to a restaurant that offers different sizes of drinks, I always opt for the largest drink they have. And like clockwork, someone in my party will make the comment “You get free refills, so why do you need to get the large?”. I can’t stress enough how this comment sends me to a place I don’t want to be, simply because I feel like I am being judged for my plastic cup size preference. There are many reasons to go for the large. First of all, it is usually only $.20 more then the small or medium, and the increase in available fluid space is well worth it. But my number-one reason that I always fire back with when interrogated of my motives is quite simple. It is something I have given the term “THF”. “THF”, you say? Yes, THF. It stands for “Take Home Factor. Let me explain. Take two people who both get fountain drinks during an evening dining at Chick Fil-A. Person A gets the small drink, person B gets the lovely large drink. Dinner goes great, both discuss the superiority of Chick Fil-A to any other fast food establishment despite the slightly higher prices. All is well. At the end of the meal, both parties fill up on their drink before leaving. Assuming both people drink at approximately the same speed, person A will run out of beverage long before person B. Imagine if you go home afterwards to watch a movie. Person A will most likely have to get up during your movie for some water (or another beverage of their choice). Person A will be fully hydrated during the entire picutre. So, for around $.20 more, person B will have quenched thirst far longer than person A. Because the large drink was purchased, you have a longer period of time before you have to tap into your own supply. In effect, you are saving money by spending money. So, next time someone accosts you for ordering the large drink, make sure you inform them of the THF.