I found a way to get free sneak previews on live jasmin a few years ago. This was before I punted. I don't know if the loophole still works.
A sneak preview give you a 30 sec look in to Somone else private session where all manner of filth would take place.
Long story short-
New account holders would get 5 sneak previews. Essentially it was about creating a new account which takes less then 5 mins (new email, new account).
I would used hidemyarse or a similar IP anonymiser to create the accounts. As it notes where an account is made from to prevent people abusing the sneak promo.
And wala you get 2.5 minutes of private session. Worth from five pounds up to 15 pounds depending on the models prices.