I just paid my dentist with PayPal.
I remember when I first saw a T bus go by with a URL for a product on the side. I remember having to explain the Web. I remember having to explain the Internet.
I just paid my dentist with PayPal, and on the page where I got his PayPal link -- the URL for his site where I could find that page was on the bill he sent me in the mail -- there was also link for his intake forms as PDFs so you can fill them out at home before the visit.