For those who are visual learners these large index cards are extremely helpful. Whether you are organizing research information for a paper or trying to memorize data sets (ie. G+ vs G- organisms medication classes etc) these cards help similar to a mnemonic. By grouping like items into color groupings information is better recalled during testing situations. The cards are large which allows for much more information than traditional index cards. For studying portability I hole punch the top left corner and put a silver binder ring through the hole. Great for students.
If you were every in nursing school... You know we use index cards by the truck load. At any rate these came in handy for med cards that were required for clinical. I feed them through my printer and watched the saving of my time cash in. Awesome!