You guys got it all wrong. Here is the proper way to wipe your ass that I was taught long ago. by an ex-prison inmate.
(1) grab ONE sheet of toilet paper and ONE sheet only.
(2) find the center of the sheet, make a little hole, and put your index finger through it all the way to the knuckle.
(3) wipe your ass with YOUR FINGER
(4) now stand up, turn around, and hold your soiled finger over the toilet
(5) with your other hand, fold the paper down over the soiled finger and slide it downwards into the toilet, wiping off all poo as you go.
Wallaaa! All done!