I go to T.J. Maxx beauty section and buy hair and cleansing product their.
Bought on large, 4 by 3 by 2 inch bar of bar soap that "cleans and moisturizes" put it in the shower and use that for shaving.
Slick as a puddle on ice.
I buy the large sizes of any thing there, used to be a quart, as price per ounce is far better and T.J. has good prices.
You are correct about toilet paper; beside sheet count you nearly have to take a tape measure along to see what size they really are.
The big ones are now so big they do not fit in the old built in wall dispensers, but some are NARROW.
I bought a case of the industrial kind two years ago, and that is good stuff, not narrow and less prone to pilling but I got it on the new buyer , free shipping special, only reason it was as cheap as it was; I have one roll left of my Chinese TP, if they put as much TP on the roll as they did material in the core, they would be a lot bigger.
To crush the core, takes real effort; would be great for home made giant fire crackers.