Cosmetic Toilet Seat Covers?

How many times have you used a public washroom and there are no paper toilet seat covers? You check all the other stalls but they are also empty. This is so frustrating when you really have to pee. Where do all the paper toilet seat covers go? Perhaps women are using the paper toilet seat covers for something else. This would explain the empty containers. Well, here is a video of how one woman uses paper toilet seat covers. I'll have to try this.