Peeve: Jewel cases and non-standardization

I got a bunch of CDs for Christmas. Many of them came packaged as pairs—two CDs in one jewel case. I keep breaking fingernails and worrying about shattering (or at least putting dings in) my Telemann quartets because I cannot figure out how to get CD#2 out of the case.
There’s no standardization. They all open differently. I’m going to need a cheat sheet, or maybe I’ll put clues on post-it notes (sort of like the stickers I put on the copier doors to show which order to open them in when clearing a paper jam). It’s idiotic.