I know some folks don't like sleeves. Just posting this for folks that do use them.
These are some of the cheapest I have found. They are sturdy and have a "fabricized" layer on the data side of the disc. I only put a single disc + any paper inserts for the disc but they are designed for two discs each.
I have gone through 3000 of these so far and just ordered another 2000.
http://www.amazon.com/gp/product/B002RO ... UTF8&psc=1-Chris