Halley loves flashcards. Especially in the car. I, well, not so much. I am always fishing them out from under and between the seats, all full of crumbs and wrinkled. Both of which cause great stress to my neat and orderly four year old.
I found this idea here at Make and Takes (great blog!) and it's so brilliant and so simple. Flashcards + book rings + hole punch = neat and orderly happiness. Halley is less frustrated as am I.