I do not have a vagina, but I have noticed that by myself 1 roll of tp will last 2-4 weeks, but when I have feminine company it becomes more like 1+ roll a week.
It's mind boggling how you need so much more tp than us guys do, not that I blame you cos it's different down there.
Maybe I'm more concerned that in 10,000 years of civilization no one has developed a better way. We have "spray with water" and "copious amounts of absorbent material".
Where's the 3 shells at, people?