I don't worry all this stuff. I hunt deer on 120 acres, it is private land, barb wire fence, cabin in the middle. I don't worry much about getting lost. I don't even carry TP, easier to walk back to the cabin and a warm crapper.
I like the cards. I would take a book. Seems every time I try to read my wife does and wants to talk to me. I know she would have a phone.