Having been schooled by a mentor who believes you can never have too many flies and suffering from the affliction that I have never seen a new fly I didn't want to tie and rationalize buying some new hook(s) and materials I don't currently have, I have enjoyed this thread and pose the following question: If you were constrained to only taking a dozen flies for a day of fishing fresh water with no additional information about where, what, or when, what would you have in that Go-box?