Quote Originally Posted by MrFurious View Post
Common index cards at the office supply work great, and at $1.19 per 100 you can't beat the price! If they're to wide for your boxes just trim them down.

http://www.officedepot.com/a/products/186348/Office-Depot-Brand-Index-Cards
I've also used blank business cards from the sheets you get to print your own. Just break the sheets down and hand write on them - much less hassle than trying to get them to print right. They're a little more expensive, but if you want/need a smaller size they fit the bill. They're great for 50rd pistol boxes.
Good idea.....

Chet