Do you have a blind. Some of my must are ...Coffee thermos(Pint size), flashlight, pruning cutter to add realism to your blind. Never never without a cap with a bill...facing the morning sun can be a pain. I also have been known to carry a crossword puzzle and a small pencil if I'm using my "tent blind"
You mentined decoys. I've made a fan "decoy out of a last year tail with a 10 inch piece of clothes hanger attached. It gets their attention. Good luck