No music CDs. All converted to MP3 and put onto data DVDs. The only devices that I use to play music is my MP3 player and my computer, so I have no need for music CDs.
And no program CDs, either. Every program CD that I get is converted into a CD image and then burned, along with other CD images, to DVD. Pop in the DVD and mount the necessary images. Faster, and I don’t have to switch discs as often (esp. for program CDs that are multi-disc).
Only time I use CDs are for booting, but it’s rare.
I like to everything as condensed and centralized as possible, so I love DVDs. I can’t wait until I can convert all my photos from DVD storage (current all my pictures take up 5 DVD discs–and I of course have backups of those discs stored in physically different locations) to BD storage so that I could squeeze 'em all onto just one disc.