If you have a block of wax, such as the one pictured here, you can simply rub it over your pans and use it in place of butter or oil. (Beeswax is edible so this is perfectly safe.) It works best if you warm the sheet a bit first. You can also melt the wax and apply it that way. Although we haven't had extended experience with this yet, apparently over time the pan will take on a permanent coat of wax, eliminating the need to grease every time. Beeswax is also traditionally used in making canelés, giving them their characteristic crispness and a slight honey flavor.
Have you ever used beeswax in this way?
(Image: Emily Ho)