What are cookies ?
A cookie is a small piece of data, sent from a website & stored by a user's web-browser. This data can be retrieved by the same web-browser, on a subsequent visit to that website, to re-establish any previous state.
What cookies are used by this website ?
This site makes trivial use of first-party cookies, to persist user-preferences; it doesn't store any third-party cookies.
How do I turn cookies off ?
If you wish, you can ask your web-browser to prevent cookies from being stored, & to delete all cookies currently stored on your computer; it will have little negative impact on the function of this site.