The main reasons given by people to explain why they hang their toilet paper a given way are ease of grabbing and habit. Some particular advantages cited for each orientation include: Over reduces the risk of accidentally brushing the wall or cabinet with one’s knuckles, potentially transferring grime and germs.
Likewise, do you put your toilet paper over or under?
The answer, as you can see above, is “over”—no surprise to the estimated 70 percent of wipers who already prefer this position, according to cnet.com. Proponents say an “over” roll provides easier access to the free end of the toilet paper and minimizes the risk of knuckle-on-wall germ gathering.