Now I have been known to enter the odd costume contest from time to time. I won a trip to London by dressing up like Arthur Dent from Hitchhiker’s Guide to The Galaxy. But that was for a Trip to London-not a free Chick-fil-a combo meal. But hey, free food is free food. Getting through the crowds is the real challenge. Still, it does sound sort of fun to dress like a cow from head to hoof for Chick-fil-A’s 4th annual Cow Appreciation Day (July 11) and get a complimentary combo meal (breakfast, lunch or dinner) from Chick-fil-A. A free…