how to shit in the desert
If you are able, and have water, use that to polish your dirty bot as the Egyptians do. If you are wedded to paper use a lighter to flame it after use, or bag it and take it away. Leaving paper, as the Cologne University crew have done at their site 60 km SW of Dakhla is simply revolting. Archeologists of all people should know that paper lasts for thousands of years in dry sand- hence the buried MS in the sands at Oxyrhincus. But no, those German eggheads just kept on shitting in the same place week in week out leaving the white paper behind. The shit has gone- eaten by beetles but the paper, denuded of sand by the wind, remains.
Flame the bloody stuff. No one wants to see other peoples shitty paper in the otherwise pristine desert.
If you have to shit on a featureless sand sheet you will find you are invisible except in a very general sense when 1 km from the camp.
Wetwipe the hands to remove the inevitable. Burn or bag the wipes.