It must be the obsessive-compulsive side of my brain but I cringe every time I see a song come up in iTunes that doesn't, for whatever reason, have album art. Something about that blank music note "no art" graphic stabs at my brain like a pick into squishy, gray-matter ice. For most albums this isn't a problem, but I've come across quite a few songs that just don't appear in the iTunes catalog for one reason or another. I spent literally an entire evening one night updating the artwork for all the little dinky b-side and uncommon tracks sitting on my hard drive so that I wouldn't have to see that little pair of notes in Cover Flow. (Damn that "Classic Hammond Organ Hits" compilation!)

Thank the Gods of Kobol for Google Image Search.