I got my clear Double ThinPaks tonight.
The first disk I tried was The Ten Commandments. Instead of cutting at all, I folded the outer art almost in half, but left the title/spine unfolded. This I put in the pouch, and when the pouch is folded, the title shows right at the spine.
Then I took the insert, which has a duplicate of the cover art! and put it in the front pouch, cover facing out, chapters facing in. Voila! No cutting, instant space savings of more than 50%.
Next, I did From Here to Eternity. This is the only disk I have purchased twice, first with extras, then with superbit, no extras. I have put both disks, and folded-up art in a Double ThinPak. Voila! More than 50% saved from the two separate disks. No cutting.
I'm on a roll, now.