Wiping your mouth (or your ass) with paper does not make it clean.
h/t Damien Williams
“The simple calculator for how much toilet paper you need to survive the pandemic.”https://howmuchtoiletpaper.com/
Of course, the correct answer is zero. Join civilization by getting a portable bidet for $100 or get the cheaper water bottle adapter and never use toilet paper again. Also, women might also wish to consider the pStyle, “[s]tand to pee while fully clothed.”