We keep a firstaid kit, hand sanitizer, bottle of water (for rinsing dirt covered hands), tweezers, a bottle of rubbing alcohol(can neutralize poison ivy oils), bug repellant, flashlight, extra socks and shoes(incase you have to creek it), and a pad of paper in case of having to do some field math! lol No we dont dont haul all of this to each cache alot stays in the cachemobile unless we think it would be needed at that specific cache site.