I keep a couple of granola bars in the cantle bag. I add a fresh bottle of water each ride. There is usually a knife and a space blanket in the cantle bag.
Depending on the day and where I'm riding, I'll add a rain slicker, apple or string cheese for some lunch, my gps and maps if I'm riding some place new.
Cell phones don't work much where I ride, no signal, So I don't bring them unless I know they will work. A small camera is usually in my shirt pocket.
Longer rides and wilderness areas I carry a 41mag in the holster. And often I bring a flyrod and some flies if there is a place to fish, usually on wilderness rides.
During hunting season, I throw some cotton bags in, so I have some place to put the meat, I'll add a rifle scabbard to the saddle to carry my rifle, and depending on where I hunt, I'll roll up some saddle paniers and tie them on behind the cantle. When we kill an elk or deer we cut it up and throw it in the panniers and lead the horse back to camp.
Of we are staying the night, I bring along a pack horse.
Also, if it's going to be an all day ride I bring hobbles for the horses, so I can turn them loose to graze while I eat lunch
I usually have my horn bag with camera and snacks on one side. Smokes ,nippers, bug spray on the other. My saddle bags have a small first aid kit, neck rope, hay string,multi purpose knife and what ever else I decide to take..plus 2 water bottles..
I need to find my saddle bags.....Since we don't have a trailer, we stay in our 7 1/2 acres, and the 1000 acres of fields and meadows behind my property. Part of it's owned by the park and part is owned by a farmer who gave us permission to ride on it 18 years ago, when we first moved here. But, let's see.....If I can find my saddle bags, I'll put in them.....
*cell phone is in my pocket
*trail hoof pick (I have this really awesome trail hoof pick that folds up and it's like awesome lol)
*apple for Arthur
*apple for me
*beef jerky (yummm)
*lead rope (what I would have given for one one time when a hot air balloon freaked Arthur and Lulu our right after the bridle snapped! Lulu is our miniature mare who just runs around with Arthur and I on her own while I ride Arthur....so here I am in this huge corn field, with a horse with no headgear on but a broken bridle, of which the cheek pieces have both snapped in half, trying to catch Lulu so I can hold onto her mane on the way home, hoping Arthur will follow....On my way to grab Lulu, since I don't have a prayer of holding my paso fino still without a halter or intact bridle, when a hot air balloon appears overhead of us and starts blowing fire. Yea, the horses freak and run, I freak out, call my mom at home, who calls the police to stand at either end of the street the horses ran towards. Luckily, the horses somehow end up back at my house so I cool em off. Somehow, the saddle blanket was missing from beneath Arthur's saddle. Lol.)
*Dog leashes for my jack russells, who always come with us