Index Cards, Ruled, 3 x 5 Inch, White, 800 Count (4pack) Index Cards by Jot 3 x 5 Inch, Ruled, 200 Count, White, 10 lines per card, ruled lines per index card help guide your writing so the notes you create are perfectly aligned, no matter how much you write on each card. The spaces between each line are also large enough so that you can write at normal size and easily read your notes with a quick glance. 1. Notecards for presentations 2. Flash cards 3. Recipe cards 4. To-do lists 5. Shopping lists 6. Sticky note substitutes 7. Mini sketch pad 8. Plan out projects 9. Class or meeting notes 10. Capture your great ideas