CookieList is a versatile Extra for MODX Revolution that stores any type of list, such as a wishlist, in a cookie.
It comes with a snippet that generates a configurable Add to / Remove from wishlist link, as well as a snippet to read the data into a comma separated list.
CookieList was originally developed by Romain Tripault of Melting Media to be included with the bdListings Extra. Since then it has been abstracted into a seperate addon, to enable others of using it for different targets as well.