Selling worn panties

To those that have done that..

How did you ladies do it? What apps or websites did you all use and how did they pay? I’m trying to get into it but I have no clue where to go (other than one place) and don’t know how to have them pay. I read to not use PayPal since it’ll show the real name and get a P.O. box and have them mail cash or checks. Is that how you ladies did it?

Thanks!