I got some clothes, a pair of electronic ear muffs, some binos, but what I think I'll get plenty of use out of is this little gadget:
http://www.amazon.com/dp/B00CYARTL2/...=IS4DPQE34DPCM
When I checked my game cameras I had to either swap my cards, carry my tablet with card reader or just bring in the cameras. This way I can check them on the spot and decide if I should leave it, re-aim, or move them elsewhere.