Occasionally I will use a blank CD or DVD to burn something like a game I obtained through less than ideal means. Otherwise, I tend to use them less than I should. But that would require me to find more uses for them.
I got a whole stack of blank DVDs a couple years ago because the student government at the college I attend was just getting rid of them. Probably was gonna throw them away if nobody picked them up, so I did. Also got some clear, see through sleeves as well.
Edit:
This post also made me remember that an art student used a bunch of discs and a teddy bear in a 3D art piece that gets a negative reaction from me. Every time I pass by it in the library, I hate it, but admit it's great art considering it gets such a strong emotion out of me.
IDK how controversial this one is, but I'd say Batman Beyond is a near perfect "I am the new Batman" type sequel series. Rather than having a series where it's all future versions of the villains facing off against future Batman, they either made new villains or reinvented one you never really saw anywhere besides a few old comics.
From what I've seen/heard of the non tie-in comics, they aren't as good, IMO, for the introduction of characters such as a future Catwoman and a few minor changes to some original characters, like turning that one Joker gang member into some sort of hybrid Joker and Two Face.
Very similar reasons as to why I think Loonatics s1 is vastly superior to season 2. Hand me original villains for a series over rehashed versions of old villains.