If you are just viewing a document like this one, it is not going to create a cookie. (Under Firefox, click on "Preferences" then "Privacy" then "Show Cookies" to see what cookies your computer is currently storing. There are probably a lot of websites storing cookies on your computer.) The purpose of the cookies that my website does use is to allow you to (maybe) set up an account, log in, to remember your preferences, and to allow you to save some information on this site. I say "maybe" because I do not allow just anyone to do these things.
The local storage is only used to allow you to save some information that you might want to re-load later, e.g. the maze game allows you to save your progress.
This website does NOT collect data on you for other purposes. It does not track where you have been before, or where you go after.