We use these at home to help with memorization of facts for tests. They make great flash cards and can be saved and used for recalling facts when needed. They can be purchased in volume making less expensive. We have hundreds! They are inexpensive and can be thrown out when you are finished with them.
As a nursing student I study 40+ hours per week. These cards make it easy for that studying to occur. We our study group use them on a daily basis and find them an invaluable tool for our learning process.