On the average, how many squares of toilet paper do you use per "application"? I know that the number of squares used can depend on the thickness of the toilet paper, so make it an average number. Just to make this clear, the poll is asking how many squares you use per application. There are multiple applications (hopefully) per session. I use 3 squares if I'm using the thick stuff and about 5 squares if I'm using the really thin stuff.