always take my flextone call, survival pack (whistle, compass, wax coated matches etc), digital/video camera, phone, knife, dragging rope, and my trusty copenhagen
i always have 2 knives on me while hunting and a flashlight with blue and green light options. this year i will be adding a camera to that list
About 80% of my hunts are all day sits, so I never leave my camp site w/o my cell phone (mostly for the Kindle app,) and baby wipes. Also always bring hand sanitizer. It cleans everything (blood, guts, crap, doe pee) off of anything, and can also be used as a fire accelerant in an emergency.