A webshop selling delicious wines was only accessible by an unsecured connection.
I installed a security certificate so the orders and customerdata are only being sent using a secure connection (SSL, https, with a lockicon in the browser).
The customer was guided through the paperwork for the application after which the adjustment of the web server could be done. We did this in such a way that any old unsecured links were automatically forwarded to the new secure pages.