Cleaning / seating jag with nylon muzzle guide in a pants pocket...the items listed below are carried in a small pocket of an upland game vest that I use as an overall hunting equipment vest for all hunting items like food, water, raingear, hat, gloves, flashlight, etc, etc...the spare items are:
A few PRB reloads
Short Starter
Spare cleaning/seating jag
Ball puller and Patch retriever
Spare vent liner and allen wrench
Spare flints and leathers
Pan brush and jaw screw bar
Pan primer
T-handle
1oz bottle TC#13
Plus a few pint size Ziploc bags holding what I call Field Cleaning Kits containing:
5 wet cleaning patches in 2”x3” ziploc
5 Dry patches (loose)
1 Lubed patch in 2” x 3” Ziploc
1 sealed foil wrap alcohol wipe
1 Q-tip
1 Pipe cleaner
1 Muzzle mitt
After a shot, I completely clean / dry / lube the bore and lock before reloading then stuff all the dirty mess back into the ziploc and carry it all back out to drop in a trash can...zero litter.