What do you guys keep your index cards in?

no I use u-line got them off ebay

i use post-it note. but i like what you all are using..

U-line is the way to go. They're nice and sturdy, not flimsy like the photo sleeves I've seen mentioned.

interesting ideas.. I'll have to check them out. I have a generic card file saved on my computer and when I get a new snake, I add a photo of the snake and print it out on 8.5x11 size heavy duty card stock paper and I keep it in a binder notebook.