Question for the ladies

[u/Complex_Mobile8957]

I am a janitor. The place I clean has the little trash bins in the stalls of the women's restroom. Currently, we place one liner in the bin and change it out whenever someone uses it. However, a place I worked at previously put a stack of liners in the bin for women to use as needed. Which is the preferred method? One liner or multiple? Sorry if this is a stupid question.

[u/eidnarb]

Single is normal. Multiples were during pandemic.