Provide the customer with the ability to mark specific service tiles as Favorites - and have them appear on their favorites page (similar to how promoted items appear on the Service Catalog landing page).  This would be very helpful for organizations with a large number of service tiles - the customer would have the ability to identify those he/she uses frequently and tag them to their favorites page.  It would also be helpful for admins to know which tiles have been tagged as favorites - might provide a direction for future service requests.