>>1250536>>1245238OP bring a garden hand trowel and a travel pack of flushable/biodegradeable wipes.
Pick a designated shitting spot a good distance away from your campsite (10's of meters at least) Use the trowel to dig an appropriate sized hole and do your business. Discard the wipe in the hole as well. Cover with the dirt you dug out.
Just don't get shit on your shovel.