I've always liked a tab because it can be worn over a warm glove when it gets cold. Unfortunately when it's very cold and your hands don't work so well you'll occasionally loose it when you shoot. For that reason, and Pat's, I usually keep a couple spares in my backpack. For some reason a glove wears a blister between my fingers. Sadly, I don't think I have a single picture that shows the tab in use. If you google "archer tab", Wikipedia has a couple pictures of how a tab is worn and the layout of a simple tab.
George