I have sections for sorted regular CD's (by artist within genre, with separate shelving for Blue Note, Strata-East, and a few other labels), for box sets (unsorted), for oversized digipaks which are not compatible with my main shelving (by artist within genre), but also some stacks of not-yet-shelved CD's, and many stacks of secondary/discard CD's in the basement. So I sometimes need to look a lot of places to see if I have a title. I always meant to make an excel list of everything I have, location, etc. during my retirement years, but life ended up throwing some curves, and I have a lot of (good) post-retirement responsibilities for family members that I had not anticipated.