I carry this little gold box with me. It perfectly holds the 3-inch paper. The shiny, gold box makes it hard to take pics, though.
Jill, this is the paper I'm using. It's very inexpensive. I didn't think I was going to like the abstract pattern, but it's one of my favorites. It also comes with 1,024 sheets, which makes it very nice if your learning to fold cranes and you want to make 1,000.
I've sent you an email with the link to the paper on Amazon in case this one doesn't work.
You can carry the cranes flat, even in a book, and then open them up when you're ready.
I hope you're having a good day today.