You aren't alone. Mine are in boxes, and appear to be neat, but there are empty cases, loose tapes, and tapes in the wrong cases. On top of that, there are loads of home-made tapes with no labels.

What I really need is somewhere to put them where they're all visible - like the rack I have for CDs...except those are in various piles around the CD player, some out of cases, and...I'm hopeless!