This website may set cookies on your device. We do not want anyone to track you (and to this end we stopped using Google Analytics on 14/01/2024). Our aim is to completely eliminate non-essential cookies but we still have work to do (for example around cookies set by third parties such as PayPal). Feel free to refuse consent to cookies here (sorry that we don't yet do this automatically and for the misleading button colours). Read more about how we use cookies on our cookie policy and privacy page.
