For university students, ID cards make great all-purpose campus cash cards. Many universities already implement magnetic stripe cards and smart cards for rec center, art studio, and other access systems so that students enrolled in certain classes can access art studios, computer labs and more with a single swipe. This way, it is possible to track who is in a certain facility at any given time in case of theft, or simply to track use of a certain resource. Student ID cards can also function as library cards and equipment rental cards.