Here's one with my 1911, for scale:
Eye and Ear protection (2 each)I'd take some Hoppes, bore patches, etc., but the range is pretty close to home, and there's no good place to clean the guns there.
First Aid kit
Ammo (.45 ACO and .22)
Hats (to keep hot ejected brass from landing on my forehead, qty 2)
Rag to wipe down guns
So that's it. What have I left out?