You know those really skinny cases that CD singles sometimes come in? They're mostly like a normal jewel case, but even thinner. Does anyone know where I can buy a bunch of them for a reasonable price? I'm up to 260 DVDs now, and I just don't have any place to put them anymore. I was thinking of moving all of them to these super-compact cases, but I don't know where I can get them. I'm looking to buy them by the hundred and I'd rather not pay too much.