I mainly have just CDs, and I always liked to just organize them alphabetically by artist, and then album by release date. I still have my CD collection, but they're packed in a couple boxes. I ripped my CDs to my computer years ago (to both FLAC and MP3 format) so I can listen to the MP3s on my devices. I still like to keep the CDs because they're my legit purchased copies, and they also act as a sort of backup for my music collection. For those who have said you got rid of all your CDs, I'm curious why you did so? Do you only stream music online these days?