Well, TP and wipes are certainly on the list. So is bar soap (as it lasts longer than liquid...though I realize many preppers make their own). Household cleaners are on my list (though good to know how to make your own home versions).
For the ladies....female products, of course. I'm not worried about too much else to stock up on, other than more health-related toiletries like creams, ointments, etc.
bear in mind some hand soaps (rather hand sanitizers.. i've had a chat on this with someone who will not let me say it is soap... because soap removes oils and stuff by clinging to it, while sanitizers can contain alchohol.. note that some alchohol sanitizers liquid hand washes etc.. can be used as a fuel source.
it is also used in things like napalm, molotovs etc.. in place of gasoline .. . not sure how that would be useful except in a mob attack though..
maybe for another topic but I'm not sure how incidenaries can be useful as a practical prepping tool.
not sure how many people want to clean their but with gasoline soaked rags and newspaper either though
the stuff can be dangerous.. Im not sure what traditional soap can be used for aside from breaking down oils... alcohol breaks down styrofoam which can add to napalm qualities.. actually soap and alcohol are similar.. I don't think a prepper can have enough of the stuff, I still don't get soap. Its only practical use is as a laxative imo, and you don't want to be lax imo. altough washing clothes without electricity is perhaps something preppers might want to brush up on.. and hand bar soap can be useful for that. good for the clothes not needed for the body.
In my head hand sanitizer is a better prepping agent than hand soap... it desanitizes.. and it is infection that you should be worried about water will clean buts but you want to remove the chance of infection and contamination to the body. in a shtf you will not smell your poop and proper poo disposal is a more important skill than whiping ones but.
even dirt and water will suffice to clean the anus.
but I think that most people use tp not baby whipes so I think this discussion would more so be what advantages to baby whipes have as a bum cleaner over top, and why is it not the norm to use babywhipes?
what I would be wondering are there good germs in the bum that you don't want to kill? like in the stomach.. what life in the rump should not be desanitized i.e. killed off?
in my head wet wipes will be better to stock because they will be harder to duplicate in a shortage.
supply and demand will continue even in social disorder.
I would have it very low priority.. personally I have little of each.. but it is more common to use tp imo but stock what you plan to use.
if water is short though inventive cleaning methods like wipes can be useful.. so overall I would get a basic supply of tp and a box or two of wipes with high alchohol content and that would be good. My bug in does not have a water shortage though so low water content is not a factor and I cannot realistically plan for a bugout of over a month unless I am buying or scavenging supplies, unless I have a vehicle, and I do not expect road access in major disorder.. travel by road will be dangerous. but I think prepping for localized disaster should come before calamity. localized disaster should not last more than a month or two so that is a good start to plan for.