When someone saves your webpage in a Bookmark, the FaveIcon image will usually be saved with it - IF you have one. Ozzie will happily show off how he creates them from images he finds on the net using only Paint. Some of the images he uses, he puts on the net first.
Why is it so useful? When a mobile user saves your page to their Home Screen on their smartphone - the FavIcon becomes the icon on the phone! That means having one should be considered necessary!
(Shouldn't be more than 15 min. Feel free to schedule with other Short Subjects)