In an attempt to keep all of our Kindergarten flash cards and stories organized, I'm using this 3x5 index card file box I found at Staples for $1.49. I'll make all the cards 3x5 so they fit perfectly and once the stories are cut & stapled, they fit well also. I plan to put clear contact paper on both sides of the flash cards for durability. I set up a template on the computer that will fit 4 3x5 cards on each page. So I'll print each page (with words), trim only the outer edges, cover both sides with contact paper, and then cut apart each card. Yes, I know it sounds like a lot of work. But, this can be done while I'm watching TV at night and I enjoy doing these things, so it's not a big deal for me. If I had neater handwriting, I would just print the words on blank index cards and be done. I'm more gifted at typing! One of these days, I'll post my templates to share. Maybe I can save someone else the time making them.