a method of providing a shelf - attached tag holder defining an upwardly - open slot for receiving a main price tag and further having a slip - fit top attachment system ; and placing a main price tag into the upwardly - open slot in a visible position . the method also includes temporarily attaching a supplemental information tag by sliding a top edge of the supplemental information tag into the downwardly - open front throat with a folded attachment flange providing positive engagement with the slip - fit top attachment system , with the supplemental information tag being positioned in front of the main price tag . the method also includes , after the step of temporarily attaching , a step of pulling the supplemental information price tag downwardly with sufficient force to overcome the positive engagement of the folded attachment flange to thus remove the supplemental information tag without disturbing the main price tag .