I always carry a day pack on big game hunts. Inside the pack or on the waist belt is a survival kit, water, food, emergencial medical kit, sheath knife, equipment to dress out the game, flashlight, cell phone, GPS, and now the SPOT emergency locator beacon. Old age has crept up on me and I am not as agile as I once was. I want to be prepared if I have an accident.
If you're lucky enough to be on private land and can leave your stand up during the off season you can tie an old piece of cloth or something of the sort to your stand. I like to use an old camo bandana that I have. That way the deer get used to the movement and eventually don't bother even looking up when there is slight movement. This may just give you the time to draw your bow or raise your gun without being detected.