I try to get the stuff made from kittens. Usually a couple squares at a time. More of a pinch than a wipe though, so I can catch cling ons. I usually try to have my daily shit before my shower in the morning. Was using a bamboo cotton cloth for a while. White, so I could ensure it was clean after use... definitely more effective.
I use four squares at a time. It's enough without being excessive. I wipe as many times as is necessary. Usually at least three. If I hit number eight or nine and it's not getting the job done, I should probably just get in the shower. If a shower isn't necessary, I'll do one final wipe with some witch hazel sprayed on paper towel, or a wash cloth if I'm feeling fancy, because wiping shit off my skin with dry toilet paper and saying "yep, that's good enough for going out in public" seems like something an incel would do.
Once a year, on the night of the blood moon, when the dogs of Satan are loosed to prowl the darkness for the unwary.
A friend of mine used to joke about being so poor and frugal that he had to count the squares and yelled at his kids if he could hear the roll spinning.
Too few squares and you risk breaking through the TP and fingering your dirty butthole. Too many squares and you risk a toilet clog.