Things made clear to me by my loss of my entire iTunes library... I sorely missed the following bands' music:
Live. I cannot function without some Live in my playlist. Recovered Secret Samadhi and Throwing Copper, and can re-rip V. I keep Birds of Pray and Distance to Here on the CD jukebox, just for variety.
The XX. These kids only have one album, but damn I missed it. Bought it off Amazon and fortunately I had put it on their cloud storage system.
Boards of Canada. This cornerstone of my ambient collection has been gutted by the crash. I saved a few tracks that happened to be on my iPod at the time. Depressed about this.
"Moonlight Shadow" remixes. It may sound silly, but I had a kick-ass collection of all the remixes of "Moonlight Shadow" (originally created by Mike Oldfield) I could find. I had twenty of them. All gone. Depressing. So I went to SoundCloud looking for new ones. Found a few worth having.
Then I got distracted looking for remixes of specific songs, like the Pet Shop Boys' "Love, Etc." and "Home and Dry." The Church's "Under the Milky Way." Ooo, they must have Depeche Mode remixes too, somewhere...
Life goes on.