Just spotted that Ryman is running a 20% off your first order offer when you sign up to their newsletter.
Lots of things are more expensive than elsewhere, so be selective in what you purchase.
The offer usually pops out from the right side of the screen and asks for your email. If not, you can scroll to almost the bottom of the page where it says "Stay in touch. Sign up for email updates and get 20% off your first order" and get your code that way.